gmors rubber guidebook
DESCRIPTION
O-ringTRANSCRIPT
-
-RINGRUBBER GUIDEBOOK
-
TABLE OF CONTENTSAbout GMORS
Basic O-Ring Elastomers
General Properties of Elastomers
O-Ring Design Reference
O-Ring Standard Size (AS 568A)
O-Ring Standard Size (BS4518)
O-Ring Standard Size (GB/T 3452.1)
O-Ring Standard Size (JIS B2401)
O-Ring Standard Size (Metric)
O-Ring Standard Size (SMS 1586)
X-Ring Design Reference
X-Ring Standard Size
Back-up Ring Design Reference
Back-up Ring Standard Size
O-Ring Kits
V-Ring Standard Size
02
04
19
25
29
38
40
45
54
65
67
68
75
76
82
84
-
www.gmors.com 02
About GMORS
GMORS- MATCH YOU ALWAYS!
Product Offerings
Welcome to GMORS Rubber!
GMORS Rubber- A company moving forward with continuous improvements. Servicing in Rubberindustry for all kinds of application to fulfill a better world.
O-ringsX-ringsBack-up RingsU-packingsV-sealsSpecial Packing Series
Wear RingsBonded SealsValve SealsWiper SealsHydraulic SealsPneumatic Seals
Since 1981, GMORS has served as the leading rubber component manufacturer in Taiwan. Known for innovation and continuous improvements, GMORS products have been approved for industries of Automotive, Semi-conductor, Medical, Aerospace, Drinking Water, Food & Drug equipment, Sanitary and various industrial grades.
Marching into the 21th century, GMORS Rubber's commitment is to satisfy all industries with the optimum combination of competitive price, high quality and fast service. Our goal is to be your best global partner on rubber components.
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 03
Main Market
Approved
IndustrialAutomotiveSemi-conductorMedical
Drinking WaterFood & DrugHydraulic / PneumaticAerospace
Manufacturing Process SystemAS9100C ( Aerospace industry approved) ISO/TS 16949:2009ISO 9001:2008IS0 13485:2003 ( medical industry non-implantable approved)
Material CertificationUL ApprovalNSF (Drinking Water)WRAS (UK Drinking Water)
TAF Approved In-House Lab with Integrated Equipment
ISO/TS 16949:2009TS38010
Abo
ut G
MO
RS
-
www.gmors.com 04
Basic O-Ring Elastomers
Butyl Rubber(IIR)
Other Common Variations
Cure system - Sulfur-Cured
Butyl rubber is composed by copolymerizing isobutylene which is with small amount of isoprene. It is like EPDM possessing excellent resistance to chemical and polar fluid, outstanding electrical insulation and good ozone resistance. The special properties of butyl rubber are low gas and moisture permeability and high shock absorption. These properties have made butyl rubber the polymer choice in a variety of applications.
IIRs can be formulated with only"white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages, ex. bottle top seal for alcohol or medical.
Standard IIRs are sulfur-cured.
Bas
ic O
-Rin
g El
asto
mer
s
AlcoholsKetonesDilute acids and alkalisSilicone oils & greasesWater and SteamPhosphate ester based hydraulicfluids - Skydrol(R)Ozone, aging & weathering
Aliphatic & aromatic hydrocarbonsHalogenated solventsPetroleum based oils & greases
Performs Well In... Doesn't Perform Well In...
ASTM D1418Designation
IIR, CIIR,BIIR
ISO/DIN 1629Designation
IIR, CIIR,BIIR
ASTM D2000 /SAE J 200 Codes
AA, BA
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
50 to 80Shore A
-55C-65F
100C212F
Relative Cost Low
General Information
Service Temperatures
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 05
Carboxylated Nitrile (XNBR)
Cure system - Sulfur-Cured
Cabboxylated Nitrile is similar to Nitrile rubber, but the polymer backbone has been chemically modified with Carboxylic Acid containing group. This result is XNBR with more excellent abrasion and tear resistance than traditional NBR. For this reason, XNBR based parts are usually applied in dynamic assembly such as seals and rod wipers.
Standard XNBR compounds are sulfur-cured.
Aliphatic hydrocarbonVegetable and mineral oils and greasesDieselWaterDilute acids, alkali and salt solutions
Aromatic hydrocarbonChlorinated hydrocarbonKetonesAcetic acidEthylene esterStrong acidsBrake fluid with glycol base
Performs Well In... Doesn't Perform Well In...
ASTM D1418Designation XNBR
XNBRISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
BG, BK,CH
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundHigh Temperature
50 to 90Shore A
-20C-4F
100C212F
125C257F
Relative Cost Low
General Information
Service Temperatures
Bas
ic O
-Rin
g El
asto
mer
s
-
www.gmors.com 06
Bas
ic O
-Rin
g El
asto
mer
s
Chloroprene Rubber(CR)
Other Common Variations
Cure system - Metal oxide cured
Chloroprene was one of the first successful synthetic elastomers in 1931 made by Dupont, and the trade name is Neoprene. It is prepared by emulsion polymerization of chloroprene, or 2-chlorobutadiene. CR is a multi-purposed elastomer which yields a balanced combination of properties. It has good resistance to sun, ozone, weather and performs well in contact with oils and many chemicals. It also displays outstanding physical toughness and good resistance to fire.
Chloroprene has been used in thousands of diverse environment, including automotive, wire and cable industries.
CR is usually used in air condition system, especially old refrigerated media like R12 or R22 and lubricant with mineral oil.
Standard CRs are metal oxides & organic accelerators.
RefrigerantsAmmoniaWaterSilicone grease and oilsHigh aniline point mineral oil
Aromatic hydrocarbonsKetonesEstersEthersStrong oxidizing acidsChlorinated hydrocarbons
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
Special CompoundHigh Temperature
CR
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
SpecialCompoundLow Temperature
CR
30 to 90 Shore A
-40C-40F
100C212F
125C257F
-55C-67F
Black
Low
BC, BE
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 07
Bas
ic O
-Rin
g El
asto
mer
s
Epichlorohydrin(CO, ECO, GECO)
Cure system - Sulfur-Cured vs. Peroxide-Cured
Other Common Variations
Hydrin is the trade name of epichlorohydrin elastomers made by Zeon Chemicals. epichlorohydrin elastomers are available as a homopolymer(CO), copolymer(ECO,GCO),and terpolmer(GECO). All epichlorohydrin rubbers offer low temperature flexibilities; resistance to oils, fuel and common solvents; higher temperature resistance than NBR; good weather ability and good dynamic properties.
ECO are usually Peroxide-cured for standard compounds of Ge Mao. It also can be Sulfur-cured to improve flexible property in dynamic system but will reduce the heat resistance and cause poorer compression set.
The typical applications of epichlorohydrin are fuels or LPG system in automotive.
Mineral oil and greaseLPG, fuelsSilicone oil and greaseOzone, weather
Ketones and estersAromatic and chlorinated hydrocarbonBrake fluidsaldehydes
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation
CO, ECOGECO
CO, ECOGECO
ISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
CH
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundHigh Temperature
50 to 80Shore A
-40C-40F
125C257F
135C257F
Relative Cost Medium
Service Temperatures
-
www.gmors.com 08
Bas
ic O
-Rin
g El
asto
mer
s
Ethylene Propylene Rubber(EPR, EPDM)
Other Common Variations
Cure system - Sulfur-Cured vs. Peroxide-Cured
EPDM is a Copolymer of ethylene and propylene, and further a terpolymer of ethylene and propylene with a small amount of a third monomer (usually a diolefin) to permit vulcanization with sulfur. Generally Ethylene Propylene Rubber possesses excellent resistance to ozone, sunlight and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis, polar solvents), and good electrical insulation property.
EPDMs are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.EPDMs can be formulated with only "white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages. EPDMs can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.EPDMs are usually used in automotive air conditioning system where R134a refrigerant gas and POE or PAG lubricant and new refrigerant for environment protection R744 is used. In R744 air conditioning system, it requires excellent resistance to explosive decompression in hydrogen dioxide at high pressure and high temperature. EPDMs are usually used in phosphate ester type hydraulic fluids.
Standard EPDMs are usually sulfur-cured. Sulfur-cured compounds offer better flexible properties but are more prone to hardening and poorer compression set with high temperature. Peroxide-cured EPDMs have better heat resistance and lower compression set. It complies with long time usage especially for hose system of construction industry, but at the same time is more expensive and more difficult for production than the sulfur-cured.
AlcoholsAutomotive brake fluidKetonesDilute acids and alkalisSilicone oils & greasesSteam to 400FWaterPhosphate ester based hydraulicfluids - Skydrol(R)Ozone, aging & weathering
Aliphatic & aromatic hydrocarbonsDi-ester based lubricantsHalogenated solventsPetroleum based oils & greases
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
EPM,EPDM
EPM,EPDM
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
Special LowTemperature
Special HighTemperature
30 to 90 Shore A
-55C-67F
125C257F
150C302F
-55C-67F
Black
Low
AA, BACA, DA
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 09
Bas
ic O
-Rin
g El
asto
mer
s
Ethylene/Acrylic elastomer( AEM, VAMAC)
Cure system - Amine-Cured
Other Common Variations
Ethylene/ acrylic elastomer is a copolymer of ethylene and methyl acrylate plus a small amount of a curesite monomer containing carboxylic acid groups. AEM is a tough, low-compression-set rubber with excellent resistance to high temperatures, hot mineral oil, fluids and weathering. The low temperature flexibility and mechanic properties are better than ACM, but it is not well resistant to low aniline oil (like ASTM No. 3 oil) and polar solvents. AEM is typically chosen for applications requiring improved performance versus Nitrile rubber, Neoprene or reduced cost versus higher-end elastomers such as HNBR, FKM. It also usually is applied in automatic industry.
Standard AEM compounds are Amine based vulcanization system.
AEM has good flexibility and good tear resistance, abrasion and compression set, and it usually is used in shaft lip seals especially in automatic transmission fluids.Special VAMAC compounds can improve oil resistance but will sacrifice some low temperature properties
Ozone, weather and hot air.Automatic transmission fluids (ATF)and Power steering fluidsWater
KetonesFuelsBrake fluids
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation AEM
AEMISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
EE
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundLow Temperature
Special CompoundHigh Temperature
40 to 85Shore A
-30C-22F
150C300F
-40C-40F
175C345F
Relative Cost Medium-High
Service Temperatures
-
www.gmors.com 10
Bas
ic O
-Rin
g El
asto
mer
s
Fluorocarbon(FPM, FKM, VITON)
Cure system Bisphenol cured vs. Peroxide-Cured
Other Common Variations
Fluorine Content
Fluorocarbon is a well- known high performance rubber, and especially it has excellent resistance to high temperature, ozone, weather, oxygen, mineral oil, fuels, hydraulic fluids, aromatics and many organic solvents and chemicals. Now we can supply parts made by
Standard FKM compounds are Bisphenol cured. FKM compounds with peroxide-cured possess better acid solution resistance than the bisphenol cured, and can replace litharge-cured applied in acid solution. In Some lubricants adding a few organic amide or amine, choosing peroxide curing system Viton will be better than bisphenol curing system.
FKM can also be submitted for approval to Underwriters Laboratories (UL) for use in applications as prescribed in UL157.FKM has excellent resistance to high temperature, oil, solvent, flame, chemical and weather, and it is usually applied in automotive, chemical processing, aerospace and many industrials. Viton GLT is broadly used in thermal range of -40C to +250C and it has outstanding resistance to aggressive HTS-type oils which are commonly used in aerospace industry.Viton ETP is usually applied in chemical industrial. In some fuels adding several methanol, Viton F and B-type are more usable than A-type especially F-type. If it requires lower temperature, GFLT and GBLT will be available .Viton TBR 605C(TFE/propylene polymer) is better base and steam resistant than other general Vitons. It can be use in amine, amide and some bases.
Viton system gum like general type (A-TYPE, 66% fluorine), middle fluorine content type (B-, GBL-TYPE, 67~68.5% fluorine), high fluorine content type (F-, GF-TYPE,70% fluorine ), improving low temperature flexibility type (GLT-, GFLT) and excellent resistance to more chemicals and solvents-- Viton ETP Extreme.We also can supply excellent acid and alkali resistance parts made by VITON TBR .
Petroleum productsFuel or blend with methanol or ethanolDiesel or blend with biodieselMineral oil and greaseSilicone oil and greaseHigh vacuumOzone, weather and very high temperature airStrong acid
KetonesLow molecular weight organic acids (formic and acetic acids)Superheat steamLow molecular weight esters and ethers.Phosphate ester based hydraulic fluids - Skydrol(R)
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
FKM
FKMISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
50 to 90 Shore A
-26C-15F
232C450F
275C525F
-40C-40F
Black
High
HK
Special CompoundLow Temperature
Special CompoundHigh Temperature
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 11
Bas
ic O
-Rin
g El
asto
mer
s
Fluorosilicone Rubber (FVMQ)
Cure system - Peroxide-Cured
Other Common Variations
Fluorosilicone is like silicone rubber, bonding trifluoropropyl, methyl, and vinyl as side chains. The mechanical and physical properties are similar to VMQ. However, FVMQ offers improved fuel and mineral oil resistance, but poorer hot air resistance then standard VMQ.
Standard FVMQ compounds are peroxide-cured.
FVMQ offers excellent low-temperature flexibility and good resistance to fuel and aromatic mineral oil. It is usually applied in contact with jet and automotive fuels, most solvents, and engine oil especially in aerospace industry.FVMQ compounds meet MIL-R-25988 specification.
FuelsAromatic mineral oils Benzene, TolueneOzone and weather
Brake FluidsKetonesHydrazine
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation FVMQ
FVMQISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
FK
Standard Color(s) Blue
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundLow Temperature
Special CompoundHigh Temperature
40 to 85Shore A
-60C-76F
177C350F
-60C-76F
232C450F
Relative Cost High
Service Temperatures
-
www.gmors.com 12
Bas
ic O
-Rin
g El
asto
mer
s
Hydrogenated Nitrile Rubber(HNBR)
Cure system - Peroxide-Cured
Other Common Variations
Acrylonitrile Content
Hydrogenated Nitrile(HNBR) is a synthetic polymer that is obtained by saturating the double bonds in nitrile=s butadiene segments with hydrogen, and it is also called HSN(Highly Saturated Nitrile). This special hydrogenation process reduces lots of double bonds in main chains of NBR polymer, thus HNBR possesses superior heat, ozone, chemical resistance and mechanical characteristics over standard Nitrile.
HNBRs are usually Peroxide-cured for standard compounds of Ge Mao. It also can be Sulfur-cured to improve flexible properties in dynamic system but will reduce the heat resistance and cause poorer compression set.
HNBRs are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.HNBRs can be formulated with only "white list" ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages.HNBRs are usually used in automotive air conditioning system where R134a refrigerant gas or new refrigerant for environment protection like R401a, R404a, R410a, R507 and R744 is used.HNBRs are also used in automotive shaft system because of their excellent abrasion resistance.In deeper oil wells, it requires material resistance to heat, crude oil, hydrogen sulfide, steam and explosive decompressionetc. Special compounds of HNBR can be available for this application.
Same as NBR, there are different levels of Acrylonitrile (ACN) content in different HNBR polymers. The ACN content can be varied from 17% to 49%. Lower ACN content gives better low temperature properties but poorer fuels and polar lubricants. Higher ACN content gives poorer low temperature properties but improves fuels and polar lubricants resistance. Standard HNBRs typically have 36% ACN content.
Petroleum based oils & fuelsAliphatic hydrocarbonsVegetable oilsSilicone oils & greasesEthylene glycolDilute acids, bases & salt solutions to moderate temperaturesWater & steam to 150C ( 300F)
Chlorinated hydrocarbonsKetonesEthersEstersStrong acids
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
HNBR
HNBR or NBM
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
50 to 90 Shore A
-40C-40F
150C302F
165C330F
-55C-67F
BlackGreen
High
CH, DF,DH
Special CompoundLow Temperature
Special CompoundHigh Temperature
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 13
Bas
ic O
-Rin
g El
asto
mer
s
Natural Rubber(NR)
Cure system - Sulfur-Cured
Other Common Variations
Natural rubber is produced from the latex of the Hevea brasiliensis,and the chemical name of this polymer is polyisoprene. Polyisoprene also can be synthesized by polymerization from its monomer isoprene. Natural rubber possesses many excellent physical properties including high resilience and strength and good abrasion resistance. The defects are like SBR, having poor resistance to hydrocarbon oil and not suitable in UV, oxygen, ozone because of the double bond in the polymer backbone. But its poor weathering resistance can be modified by special additive.
Standard NR compounds are sulfur-cured.
NR is usually mixed with SBR and BR and applied in tire productions.
AlcoholsOrganic acids
OzonePetroleum oilsAromatic, aliphatic, or halogenated hydrocarbons
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation NR
NRISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
AA
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
40 to 90Shore A
-50C-58F
70C158F
Relative Cost Low
Service Temperatures
-
www.gmors.com 14
Bas
ic O
-Rin
g El
asto
mer
s
Nitrile Rubber (NBR)
Cure system - Sulfur-Cured vs. Peroxide-Cured
Other Common Variations
Acrylonitrile Content
Nitrile rubber, also known as NBR or Buna N, is one of the most commonly used sealing elastomers due its resistance to petroleum based fuels and lubricants and its relatively low price. Nitrile elastomers are copolymers of acrylonitrile and butadiene. There are a number of common variations of nitrile compounds.
Standard Nitriles are usually sulfur-cured. Sulfur-cured compounds offer better low temperature properties but are more prone to hardening with high temperatures. Peroxide-cured nitriles have better heat resistance and lower compression sets but are more expensive and are more difficult to process.
Nitriles are often internally lubricated to improve ease of installation or reduce friction for dynamic applications.Nitriles can be formulated with only "white list " ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages. Nitriles can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.Nitriles can also be submitted for approval to Underwriters Laboratories (UL) for use in applications as prescribed in UL157.Nitrile rubber can be combined with polyvinyl chloride (PVC) to create fuel, ozone and weathering resistance NBR-PVC blends.
The acrylonitrile (ACN) content of the polymer chains can be varied from 18% to 50%. Lower ACN content gives better low temperature properties but poorer fuels and polar lubricants. Higher ACN content gives poorer low temperature properties but improved fuels and polar lubricants resistance. Standard NBRs typically have 34% ACN content.
Petroleum based oils & fuelsAliphatic hydrocarbonsVegetable oilsSilicone oils & greasesEthylene glycolDilute acidsWater to below 100C (212F)
Aromatic hydrocarbonsAutomotive brake fluidChlorinated hydrocarbonsKetonesEthersEstersPhosphate ester hydraulic fluidsStrong acidsOzone / weathering / sunlight
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
Special CompoundHigh Temperature
NBR
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
SpecialCompoundLow Temperature
NBR
40 to 90 Shore A
-40C-40F
100C212F
125C275F
-55C-67F
Black
Low
BF, BGBK, CH
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 15
Bas
ic O
-Rin
g El
asto
mer
s
Polyacrylate(ACM, PA)
Cure system - Amine based & metal soaps Cured
Other Common Variations
Polyacrylates or simply acrylate rubbers are copolymers having two major components: the backbone ( monomeric acid ester of alkyl or alkoxy) and the reactive curesite. ACMs have good resistance to high heat and oil which is better than NBRs. It also well resists oxygen and ozone even at high temperature, but is with poorer water and low temperature flexibility compared to NBRs. Special ACM can improve low temperature flexibility to -40C (TR10 value) without reducing oil and heat resistance.
Standard ACM compounds are Amine based and metal soaps combined to vulcanize.
Polyacrylates usually are applied in automatic industry, especially in automatic transmission and steering fluids.
Mineral oi ls (transmission and steering fluids)Ozone, weather and hot air.
AlcoholAromatics and chlorinated hydrocaebonsHot water and steamAcids, alkalis and aminesBrake fluids
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation ACM
ACMISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
DF, DH,EH
Standard Color(s) Black
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundLow Temperature
Special CompoundHigh Temperature
45 to 80Shore A
-15C5F
150C300F
-40C-40F
175C345F
Relative Cost Medium-High
Service Temperatures
-
www.gmors.com 16
Bas
ic O
-Rin
g El
asto
mer
s
Polyurethane(PU, AU, EU)
Other Common Variations
Cure system - Peroxide-Cured
The millable Polyurethane rubbers are distinguished into two types; one is polyester urethane (AU), the other is polyether urethane (EU). AU type urethanes have outstanding oil, fuel and solvent resistance but can be attacked by hydrolysis, EU type urethanes are not attacked by hydrolysis and still offer a fuel and oil resistance comparable to low ACN ( 18~22% ACN) Nitriles or HNBRs. Any type polyurethane has excellent wear resistance, high tensile strength and high elasticity in comparison with any other elastomers. We also can offer any type thermoplastic urethane (TPU).
Polyurethane usually is applied in mechanical industry, especially in the place where material must have higher wear resistance and higher strength.In some applying environment, moisture condensing will happen on the surface of rubber seal, and this will cause hydrolysis of AU so choosing EU is better. But EU does not resist oil very well, thus higher aniline point oil must be used for lubricant application.Appling in hydraulic system, TPU will be better than millable Polyurethane.
Standard PU compounds are peroxide-cured.
Aliphatic hydrocarbonMineral oil and greaseSilicone oil and greaseOzone Water up to 50C (EU type)
KetonesAlcoholsEstersEthersHot water and steamAlkalis, aminesAcidsGlycols
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
Special CompoundHigh Temperature
AU, EU
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
SpecialCompoundLow Temperature
AU, EU
60 to 93 Shore A
-40C-40F
80C176F
100C212F
-55C-67F
Black
Medium-High
BG
Basic O-Ring Elastomers
As you know that polyester urethane (AU) exhibits an unique property of easily getting hydrolyzed, GMORS now no longer provides this product line.
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 17
Bas
ic O
-Rin
g El
asto
mer
s
Silicone Rubber (MQ, VMQ, PVMQ)
Cure system - Peroxide-Cured vs. Platinum cured
Other Common Variations
Physically, silicones are based on silicon, an element derived from quartz. To create this class of synthetic elastomers, pendant organic groups such as methyl, phenyl and vinyl are attached to silicon atoms. The different addition of side chains can achieve significant variations in properties. Silicones have excellent heat, ozone and corona resistance, very well dielectric stability, and resistance to many oils, chemicals, and solvents. And for all elastomers, silicones possess the best flexible property at low temperature. But it also has some weakness like low tensile strength, poor tear and wear resistance.
Standard silicone compounds are usually peroxide-cured. Platinum-cured compounds offer better flexible properties and very low volatile matter. Platinum-cured silicones usually are applied in medical system or other required low volatile matter, but they need to be produced in clean room and higher cost of platinum catalyzer so they are more expensive than peroxide-cured ones.
Silicones can be formulated with only "white list " ingredients as specified in 21.CFR 177.2600 for use in applications where the elastomer will be in contact with food or beverages.Silicones can be submitted for approval by the National Sanitation Foundation (NSF) for use in drinking water applications.Silicones are usually used in automotive system like boots, oil filter valve, gasket in light...etc.Silicone parts can be used in medical system which especially require compliance to USP CLASS VI.
Engine and transmission oil (mineral oils) Diluted salt solutionModerate water Dry heat Ozone, weather resistance
Concentrated acids and alkalisSteam over 120CPetroleum oils and fuelKetones
Performs Well In... Doesn't Perform Well In...
General InformationASTM D1418Designation
Q, MQ,VMQ,PVMQ,
Q, MQ,VMQ,PVMQ,
ISO/DIN 1629Designation
ASTM D2000 /SAE J 200 Codes
FC,FE,GE,
Standard Color(s) Rust
HardnessRange
Standard LowTemperature
Standard HighTemperature
Special CompoundLow Temperature
Special CompoundHigh Temperature
25 to 90Shore A
-60C-76F
225C437F
-100C-150F
300C572F
Relative Cost Medium-High
Service Temperatures
-
www.gmors.com 18
Bas
ic O
-Rin
g El
asto
mer
s
Styrene-Butadiene Rubber(SBR)
Other Common Variations
Cure system - Sulfur-Cured
The most widely used synthetic rubber in the world is SBR, a copolymer of styrene and butadiene. SBR also was called Buna S (from the first trade name of Bayer). Where SBR rubber is used the most is in tire by blending it with natural rubber and butadiene rubber. SBR is weak and unusable without reinforcement by carbon black, but with carbon black it is strong and abrasionresistant. The defects of SBR are poor resistant to oil and not suitable in weathering, UV, oxygen, ozone because the double bond in the polymer backbone.
SBR is usually mixed with NR and BR and applied in tire productions. SBRs are mostly applied seals for non-mineral oil based brake fluid.
Standard SBR compounds are sulfur-cured.
WaterAlcoholSilicone oil and greaseNon-mineral oil based brake fluidWeak acids
Petroleum oils and fuelsAromatic, aliphatic, or halogenated hydrocarbonsStrong acidsMineral oils
Performs Well In... Doesn't Perform Well In...
General Information
Service Temperatures
ASTM D1418Designation
Standard LowTemperature
Standard HighTemperature
SBR
ISO/DIN 1629Designation
Hardness Range
Standard Color(s)
Relative Cost
ASTM D2000 /SAE J 200 Codes
SBR
50 to 70 Shore A
-55C-67F
100C212F
Black
Low
AA,BA
Basic O-Ring Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 19
General Properties of Elastomers
Service Temperature Range Chart
Oil And Heat Resistance Comparison Chart
This service temperature range is for reference only. In actual service environment, some specific compounds may not reach the maximum temperature as indicated in this chart. However, higher temperature may be attained if exposure is short period or intermittent.
Fluorosilicone
FK
M
HN
BR
PU
(AU
, EU
)
AE
M
AC
M
Silicone
IIR
CR
EP
DM
NB
R
NR
SB
R
XN
BR
EC
O
300
250
200
150
100
50
0
-50
-100
250
225
200
175
150
125
100
75
160 1 40 120 1 00 80 60 40 3 0 20 1 0
Hea
t res
ista
nce
()
Oil resistance (ASTM NO. 3 dilatability)
EPDM
Silicone
AEM
EU
FKM
Fluorosilicone
ACM
ECO
AUIIR
SBR/ NR
CR NBR XNBR
HNBR
Gen
eral
Pro
pert
ies
of E
last
omer
s
-
www.gmors.com 20
General Properties of Elastomers
Elastomer Guidelines and Recommendations
Gen
eral
Pro
pert
ies
of E
last
omer
s
Elastomer Base General RecommendationsDurometer(Shore A)
Butyle(IIR) General ASTM D2000 M2BA710 B13 C12
Carboxylated Nitrile(XNBR)
General ASTM D2000 M2BG714 A14 B14 EO14 EO34 EF11 EF21Internal lubrication (PTFE, Molysulfide, Erucamide)
General ASTM D2000 M3CA710 A25 B35 EA14 G11General ASTM D2000 M3DA710 A26 B36 C32 EA14 F19 G21 Z1=PeroxideInternal LubricantFDA 21 CRF177.2600 Class II spec.NSF61 approval.Peroxide Cured, Electric insulationGeneral, ANTI-MICROBEPeroxide Cured, Coolant SystemPeroxide Cured, Brake SystemHFC-134A Plus PAG or POE Lubricant
General ASTM D2000 M2HK810 A1-10 B38 EF31 EO78 Z1=75+/- SHORE A.General ASTM D2000 M2HK910 A1-10 B38 EF31 EO78 EO88FDA 21 CFR 177.2600Internal Lubricant (PTFE, MOS2)AMS 7276, Mil-R-83248 Low Compression SetViton GFLT for Chrysler MS-BZ832 Grade F.Viton F-type for Ford WSA-M2D401-A8Viton GLT-type for Chrysler MS-BZ832 grade GViton GF-type for Chrysler MS-BZ832 grade CViton B-type for Chrysler MS-BZ832 grade BGeneral meet F15 Low TemperatureAnti Explosive Decompression (AED)GLT AMS-R-83485(Low Compression Set and Low Temperature)
Chloroprene Rubber(CR)
General ASTM M3BC710 A14 B14 EO14 EO34 F17Electrical insulation 500v, 100m For UL94-V1 application
Epichlorohydrin(CO, ECO, GECO)
General M3CH710
Ethylene Propylene Rubber(EPR, EPDM)
Ethylene/ Acrylielastomer(AEM, VAMAC)
General ASTM D2000 M3EE710 A47 B46 EO16 EO36 F16E1:ATF Dexron lll and l
70
70
7070
7070707070707070707075
7590757575757575757575759575
705760
70
Fluorocarbon(FPM, VITON, FKM)
General Properties of Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 21
Elastomer Guidelines and Recommendations
Gen
eral
Pro
pert
ies
of E
last
omer
s
Elastomer Base General RecommendationsDurometer(Shore A)
ETP Viton ETP-type excellent oil, heat, chemical, solvent resistance
Fluorosilicone Rubber(FVMQ)
Hydrogenated NitrileRubber (HNBR, HSN)
Natural Rubber(NR)
Nitrile Rubber(NBR, BUNA-N)
Polyacrylate(ACM, PA)
Polyurethane(PU, AU, EU)
Silicone Rubber(MQ, VMQ, PVMQ)
Styrene-Butadiene Rubber(SBR)
M25988/3 Type 1, Class 1, Grade 60M25988/1 Type 1, Class 1, Grade 70M25988/2 Type 1, Class 3, Grade 75M25988/4 Type 1, Class 1, Grade 80
General ASTM D2000 M2DH710 A26 B16 EO16 Eo36 F17 Z1=Green colorFord WSH-M2D463-AFDA 21 CRF177.2600 Class II spec.Good fuel resistance and for adhesion metal seal.New Refrigerant for Environment Protection and HFC-134A
General ASTM D2000 M2AA710General ASTM D2000 M2AA410
General ASTM D2000 M2BG714 A14 B34 EA14 Ef11 EF21 EO14 EO34FDA 21 CFR177.2600 Class I40% Acn. Good fuel resistance.Internal lubricant (PTFE, Molysulfide, Wax)NBR/PVC blending, excellent ozone resistance, good fuel resistance.Higher heat resistance (M2CH714 A25 Eo15 EO35)18% Acn. Excellent low temperature resistance (-55C)NSF61 approval.Insulation, resist to 2kvNon-nitosamine
General ASTM D2000 M2DH710 A26 B16 EO16 EO36 F13Improve low temperature flexibility
Ether type-excellent water resistance, Ester type-excellent oil resistance.Ether type-excellent water resistance, Ester type-excellent oil resistance.
General ASTM D2000 M2GE705 A19 B37 C12 Ea14 EO16 EO36 F19Meet FDA 21 CFR177.2600 Class ll spec./NSF61 approval.ZZ-RP765E/ GEN,AMS 3340High heat resistance, service temperature -55C~ +300C Improve oil resistanceUSP Class VIUL 94-vo approval
General ASTM D2000 M2AA708
75
60707580
7070707080
7040
70707070707070706070
7070
7090
70707070707060
70
General Properties of Elastomers
-
www.gmors.com 22
Gen
eral
Pro
pert
ies
of E
last
omer
s
Fluid Compatibility Table
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATA
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATA
ACETAMIDEACETAMIDEACETIC ACID,GLACIAL HOT,HIGH PRESS 5%ACETONEACETOPHENONEACETYLENEAMMONIA,GAS,COLD GAS,HOT LIQUID(ANHYDROUS)AMMONIUM HYDROXIDE, 3 MOLAR CONCENTRATEDAMYL ACETATEANDEROL,L-774(DI-ESTER)ANTIFREEZEANILINEANSUL ETHER 161 OR 181AROCLOR,1248 1254 1260ASKARELASTM OIL NO.1 NO.3ASTM REDERENCE FUEL A B C DAUTO. TRANSMISSION FLUIDBEERBENZALDEHYDEBENZENEBENZINEBENZOIC ACIDBENZOPHENONEBENZYL ALCOHOLBLEACH LIQUORBORAXBORIC ACIDBRAKE FLUID(NON-PETROLEUM)BROMINEBROMOBENZENEBUNKER OILBUTANEBUTTER-ANIMAL FATN-BUTYL ACETATE
BUTYL ALCOHOLBUTYL AMINE OF N-BUT AMINEBUTYL CARBITOLBUTYL CELLOSOLVEBUTYRALDEHYDCARBITOLCARBITOL ACETATECARBON DISULFIDECARBON TETRACHLORIDECARBONIC ACIDCASTOR OILCELLOSOLVECHASSIS GREASECHLORACETIC ACIDCHLORACETONECHLORODANECHLORINE,DRYCHLORINE DIOXIDE CHLORINE DIOXIDE,8% CL AS NAC10 IN SOLUTION CHLORINE TRIFLUORIDECHLORINE,WETCHLOROBENZOLCHLOROFORMCHLOROSULPHONIC ACIDCHROME PLATING SOLUTIONSCHROMIC ACID,50%CITRIC ACIDCOD LIVER OILCOFFEECORN OILCREOSOTE,COAL TARCREOSOTE OILCREOSYLIC ACIDCRUDE OILCYCLOHEXANECYCLOHEXNOLDECALINDENATURED ALCOHOLDIACETONEDIBUTYLAMINEDIBUTYL PHTHALATEDICHLORO ANILINEDICHLORO BUTANEDIESEL OILDIETHYLAMINEDIETHYL BENZENE
NIT
RIL
E(N
BR
)
NIT
RIL
E(N
BR
)
EP
DM
EP
DM
FLU
OR
OC
AR
BO
N(V
ITO
N)
FLU
OR
OC
AR
BO
N(V
ITO
N)
NE
OP
RE
NE
NE
OP
RE
NE
PO
LYA
CR
YLA
TE
PO
LYA
CR
YLA
TE
FLU
OR
OS
ILIC
ON
E
FLU
OR
OS
ILIC
ON
E
SIL
ICO
NE
SIL
ICO
NE
General Properties of Elastomers
General Properties of Elastomers
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 23
Gen
eral
Pro
pert
ies
of E
last
omer
s
Fluid Compatibility Table
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATA
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATA
DIETHYLENE GLYCOLDIMETHYL ETHERDIMETHYL FORMAMIDEDIMETHYL PHTHALATEDIMETHYL TEREPHTHALATEDIOCTYL PHTHALATEDIOXANEDIPHENYLDOW CORNING-550DOW GUARDDOWTHERM,A EELCO 28-EP LUBRICANTEPOXY RESINSETHANEETHANOLETHANOL AMINEETHYL ACETATE-ORGANIC ESTERETHYL BENZENEETHYL CELLULOSEETHYL CHLORIDEETHYL ETHERETHYL FORMATEETHYL HHEXANOLETHYL MERCAPTANETHYLENE CHLORIDEETHYLENE OXIDEFORMALDEHYDEFORMIC ACIDFREON 12FUEL OILFURAN(FURFURAN)FURFURALFURFURYL ALCOHOLFYRQUEL A60GALLIC ACIDGASOLINEGELATINGLUCOSEGLYCERINE-GL YCEROLN-HEPTANEN-HEXALDEHYDEN-HEXANEHEXANOLHOME HEATING OIL
HYDRAZINEHYDROCHLORIC ACID, 3 MOLAR CONCENTRATEDHYDROCYANIC ACIDHYDROGEN PEROXIDE 90%HTDROGEN SULFIDE DRY,COLD DRY,HOT WET,COLD WET,HOTHYDROQUINONEHYPOID GEAR LUBEIODINEISOCYANATEISO OCTANEISOPHORONE(KETONE)ISOPARISOPROPANOLISOPROPYL ACETATEJP-4(MIL-J-5624)JP-5(MIL-J-5624)KEROSINELACTIC ACID,COLD HOTLACQUERSLARD,ANIMAL FATLINOLEIC ACIDLINSEED OILLYE SOLUTIONSMALATHIONMALEIC ACIDMERCURYMETER-CRESOLMETHANEMETHANOLMETHYL ACETATEMETHYLACRYLIC ACIDMETHYL CELLOSOLVEMETHYL CHLORIDEMETHYL ETHYL KETONE(MEK)MRTHYL MERCAPTANMILKMINERAL OILSMINERAL SPIRITSMONOVINYL ACETYLENE
NIT
RIL
E(N
BR
)
NIT
RIL
E(N
BR
)
EP
DM
EP
DM
FLU
OR
OC
AR
BO
N(V
ITO
N)
FLU
OR
OC
AR
BO
N(V
ITO
N)
NE
OP
RE
NE
NE
OP
RE
NE
PO
LYA
CR
YLA
TE
PO
LYA
CR
YLA
TE
FLU
OR
OS
ILIC
ON
E
FLU
OR
OS
ILIC
ON
E
SIL
ICO
NE
SIL
ICO
NE
General Properties of Elastomers
-
www.gmors.com 24
1 1 1 1 1 1 32 1 1 1 1 1 11 4 1 4 x 1 x4 1 1 4 4 x 44 1 4 4 4 3 32 1 2 2 4 2 11 4 1 2 2 1 42 4 1 2 2 1 41 3 1 3 1 1 12 2 x 2 x x 21 4 1 2 1 1 41 1 1 2 4 1 1
4 2 1 3 2 3 44 4 1 4 4 4 41 4 1 2 1 x x1 1 1 2 4 x 21 1 1 1 4 1 22 4 1 3 4 1 21 2 1 2 x 1 14 4 1 4 4 2 x4 4 1 4 x 1 41 4 1 2 1 1 21 4 1 2 1 1 44 4 1 4 4 2 43 4 1 4 4 2 43 2 4 2 4 4 x1 4 1 4 1 1 41 4 1 4 2 2 41 1 1 1 x x 11 4 1 1 1 x 42 4 1 4 4 2 42 1 1 2 4 3 11 1 2 2 4 1 11 4 1 2 1 x 11 1 1 1 4 1 11 4 1 2 x 2 4G
ener
al P
rope
rtie
sof
Ela
stom
ers
Fluid Compatibility Table
MUSTARDNAPHTHANAPHTHALENENAPHTHENIC ACIDNAYURAL GASNEATSFOOT OILNITRIC ACID 3 MOLAR CONCENTRATED RED FUMING(RFNA)INHIBITED RED FUMING(IRENA)NITROBENZENENITROPROPANEN-OCTANEOCTANOLOLEIC ACIDOLEUM(FUMING SULFURIC ACID)ORONITE 8200OXALIC ACIDPEANUT OIL PENTANE, 2 METHYL 2-4,DIMETHYL 3-METHYLPERCHLOROETHYLENEPETROLEUM ETHERPHENOLPHENYLHYDRAZINEPHOSPHORIC ACID 3 MOLAR CONCENTRATEDPINE OILPOTASSIUM HYDROXIDE,50%PROPANEPROPANOLPROPYL ACETATEPYDRAUL 10E,29ELT 30E,50E,65E,90E 115E 230E,312C,540CPYRANOLPYRIDINERAPESEED OILSAE10W30SEA(SALT) WATER
SILICONE GREASESSILVER NITRATESKELLY,SOLVENT B,C,ESKYDROLSKYDROL 500SODIUM HYDROXIDE,3 MOLARSOVASOL NO.1,2 AND 3 NO.73 AND 74SOYBEAN OILSTEARIC ACIDSTODDARD SOLVENTSUCROSE SOLUTIONSSULFURIC ACID 3 MOLAR CONCENTRATEDTALL OILTANNIC ACID 10%TAR,BITUMINOUSTARTARIC ACIDTETRACHOROETHANETETRALINTIDEWATER OIL-BEEDOL MULTIGEAR 140,EP LUBETOLUENETRICHLOROETHYLENETRIETHANOL AMINETURBINE OILTURPENTINEUCDN 50HB 280XUNIVIS J-43VARNISHVINEGARWATERWHEAT GERM OILWHISKEY AND WINESWOOD OIL
General Properties of Elastomers
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATA
COMPATIBILITY RATING SATISFACTORY FAIR(USUALLY OK FOR STATIC SEAL)
DOUBTFUL(SOMETIMES OK FOR STATIC SEAL)
UNSATISFACTORY INSUFFICIENT DATANI
TRIL
E(N
BR
)
NIT
RIL
E(N
BR
)
EP
DM
EP
DM
FLU
OR
OC
AR
BO
N(V
ITO
N)
FLU
OR
OC
AR
BO
N(V
ITO
N)
NE
OP
RE
NE
NE
OP
RE
NE
PO
LYA
CR
YLA
TE
PO
LYA
CR
YLA
TE
FLU
OR
OS
ILIC
ON
E
FLU
OR
OS
ILIC
ON
E
SIL
ICO
NE
SIL
ICO
NE
General Properties of Elastomers
-
General Properties of Elastomers
Design Data: Extrusion Limit of O-ring & Clearance Gap
GE MAO RUBBER INDUSTRIAL CO., LTD. 25
O-R
ing
Des
ign
Ref
eren
ce
The O-ring is contained in the gland and forced to flow into the surface imperfections of the glands and any clearance gap available to it. So, O-ring can perform sealing by means of squeeze under low-pressure conditions. However, as the pressure mounts, it becomes distorted. The distortion increases the strain, and the increased strain results in more tight sealing. Under high pressure, O-ring would extrude out of the clearance gap. The extrusion will cause seal failure in a standard gland configuration.
An antiextrusion back-up ring, made of a tough, cut-resistant material such as leather, Teflon or hard rubber, is suggested. In static applications it may be possible to modify the gland design to withstand the higher pressure without the addition of a back-up ring. Anyway, care must be taken to make the extrusion as small as possible. The extent of this extrusion depends upon the hardness of O-r ing, pressure and clearance gap. Please refer to FIG 1, FIG 2 and TABLE 1.
FIG. 1
PRESSURE
LOW PRESSURE 1000 PSI 1500 PSI
CLEARANCEGAP
PRESSURE EXTRUSION
DIAMETRAL CLEARANCE (INCH)
FL
UID
PR
ES
SU
RE
(PS
I)
10000
8000
6000
5000
4000
3000
20001500
1000
800
600
500
400
300
200
1000.008 0.016
70 80 90
0.024 0.032
O-RING EXTRUSIONWITHOUT BACK-UP RINGS
NO EXTRUSION
FIG.2: EXTRUSION LIMIT OF O-RIN G
HARDNESS, SHORE A
Table 1: Limit of the Diametral Clearance (Unit: Inch) Against Fluid Pressure
EXTRUSION HAPPENS BEYOND THE LIMIT OF DIAMETRAL CLEARANCE AGAINST FLUID PRESSURE.
PRESSURE (PSI) HARDNESS
SHORE AUP TO 500 500-1000 1000-1500 1500-2000 2000-3000
0.0160.028
7090
0.0100.024
0.0060.020
0.0040.016
0.0020.010
General Properties of Elastomers
-
www.gmors.com 26
O-Ring Design ReferenceO
-Rin
g D
esig
n R
efer
ence
Static O-ring Sealing- Industrial Static Seal Glands
Break ComersApprox, ,005 RAD.
GrooveDepth
Gland Detail
32
63
63
1/2 E
F
G
L
(e)0to 5(Typ.)
32
W W
W
.005Typ.
.003 Typ.
Pressure
NoBack-up
Ring
OneBack-up
Ring
G G1
Section W-W
W
I.D.
Pressure
TwoBack-up
Ring
G2
Pressure
Male Gland Female Gland
1/2 E1/2 E
B Dia.B-1 Dia.C Dia.A Dia.
D Dia.A-1 Dia.
(A-1 Max. =B Min. +2L Max.)
(B-1 Min. =A Max. -2L Max.)
Design- For Industrial O-Ring Static Seal Glands
O-RingSize
AS568A-
LGlandDepth
SpueezeG-Groove Width
No Back-up Ring(G)
One Back-up Ring(G1)
Two Back-up Ring(G2)
.050to
.052
.015to
.023
.111to
.113
.022to
.032
.081to
.083
.017to
.025
.170to
.173
.032to
.045
.226to
.229
E(a)DiametralClearance
RGrooveRadius
MaxEccen-tricity(b)
.002to
.005
.093to
.098
.138to
.143
.205to
.210
.005to
.015
.003to
.006
.187to
.192
.208to
.213
.275to
.280
.010to
.025
.002to
.005
.140to
.145
.171to
.176
.238to
.243
.005to
.015
.003to
.006
.281to
.286
.311to
.316
.410to
.415
.020to
.035
.004to
.007
.375to
.380
.408to
.413
.538to
.543
.020to
.035
.002
.003
.002
.004
.005.040to
.055
22to32
16to23
17to24
15to21
15to20
WCross-Section
Nominal
1/16
3/32
1/8
3/16
1/4
Actual Actual %
.070.003
.103.003
.139.004
.210.005
.275.006
006through
012
014through
116
201through
222
309through
349
425through
460
(a) Clearance (extrusion gap) must be held to a minimum consistent with design requirements for temperature range variation. (b) Total indicator reading between groove and adjacent bearing surface.(c) Reduce maximum diametral clearance 50% when using silicone or fluorosilicone O-rings.
(d) For ease of assembly, when Back-up Ring are used, gland depth may be increased up to 5%.
O-Ring Design Reference
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 27
Static O-ring Sealing- Face Seal Glands
O-R
ing
Des
ign
Ref
eren
ce
Break ComersApprox, ,005 RAD.
L
GrooveDepth(= Gland Depth)
Gland Detail
Surface finish X:32 for liquids16 for vacuumand gases
X
R63
63
G
L
0to 5(Typ.)
32
W W
W
.005 Max.
.003 Max.
Section W-W
W
I.D.
For Internal Pressure(outward pressure direction)dimension the groove by itsoutside diameter (H ) and width:o
For Extemal Pressure(inward pressure direction)dimension the groove by itsinside diameter (H ) and width:i
(H )=Mean O.D. of O-ringTolerance=Minus 1% of MeanO.D., bot not more then-.060
o
(H )=Mean O.D. of O-ringTolerance=Plus 1% of MeanO.D., bot not more then+.060
i
Design- For Industrial O-Ring Static Seal Glands
O-RingSize
AS568A-
LGlandDepth
Spueeze G-Groove Width
Liquids Vacuumand Gases
.050to
.054
.013to
.023
.101to
.107
.028to
.042
.074to
.080
.020to
.032
.152to
.162
.043to
.063
.276to
.286
.370to
.380
.201to
.211
RGrooveRadius
.101to
.107
.084to
.089
.005to
.015
.177to
.187
.158to
.164
.010to
.025
.136to
.142
.120to
.125
.005to
.015
.270to
.290
.239to
.244
.020to
.035
.475to
.485
.638to
645
.342to
.362.419to
.424
.560to
565
.309to
.314.030
to.045
.030to
.040
.020to
.035.082to
.108
.112to
.138
.058to
.080
19to32
20to30
20to30
21to30
22to28
22to27
21to29
WCross-Section
Nominal
1/16
3/32
1/8
3/16
1/4
3/8
1/2
Actual Actual %
.070.003
.103.003
.139.004
.210.005
.275.006
.500.008
.275.006
004through
050
102through
178
201through
284
309through
395425
through475
special
special
These dimensions are intended primarily for face type O-ring seals and low temperature applications
O-Ring Design Reference
-
www.gmors.com 28
O-R
ing
Des
ign
Ref
eren
ce
Static O-ring Sealing- Industrial Static Seal Glands
Design- For Static Vacuum Seal Glands
O-RingSize
AS568A-
LGlandDepth
ESpueeze
GGroove Width
.050to
.052
.015to
.023
.111to
.113
.022to
.032
.081to
.083
.017to
.025
.170to
.173
.032to
.045
.226to
.229
DiametralClearance
RGrooveRadius
Max*Eccen-tricity(b)
.002to
.005
.093to
.098
.005to
.015
.003to
.006
.187to
.192
.010to
.025
.002to
.005
.140to
.145
.005to
.015
.003to
.006
.281to
.286
.020to
.035
.004to
.007
.375to
.380
.020to
.035
.002
.003
.002
.004
.005.040to
.055
22to32
16to23
17to24
15to21
15to20
WCross-Section
Nominal
1/16
3/32
1/8
3/16
1/4
Actual Actual %
.070.003
.103.003
.139.004
.210.005
.275.006
004through
050
102through
178
201through
284
309through
395
425through
475
*Total indicator reading between groove and adjacent bearing surface.
Male Gland Female Gland
1/2 E1/2 E
W
.005 Typ.
.003 Typ.
Section W-W
Break ComersApprox, ,005 RAD.
GrooveDepth
F GrooveDepth (Ret.)
Gland Detail
32
R32
32
1/2 E
F
G
L
0to 5(Typ.)
16
CS
CSCS
ID
O-Ring Design Reference
O-Ring Design Reference
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 29
O-Ring Standard Size (AS 568A)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0001A0002A0003A0004A0005A0006A0007A0008A0009A0010A0011A0012A0013A0014A0015A0016A0017A0018A0019A0020A0021A0022A0023A0024A0025A0026A0027A0028A0029A0030A0031A0032A0033A0034A0035A0036A0037A0038A0039A0040A0041A0042A0043A0044A0045
1/32 3/64 1/16 5/64 3/32 1/ 8 5/32 3/16 7/32 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 43 1/ 23 3/ 44
3/32 9/64 3/16 13/64 7/32 1/ 4 9/32 5/16 11/32 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/16 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 3/ 83 5/ 83 7/ 84 1/ 8
1/32 3/64 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16 1/16
0.0290.0420.0560.0700.1010.1140.1450.1760.2080.2390.3010.3640.4260.4890.5510.6140.6760.7390.8010.8640.9260.9891.0511.1141.1761.2391.3011.3641.4891.6141.7391.8641.9892.1142.2392.3642.4892.6142.7392.8642.9893.2393.4893.7393.989
0.0040.0040.0040.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0090.0090.0090.0100.0100.0100.0110.0110.0110.0130.0130.0130.0150.0150.0180.0180.0180.0180.0180.0200.0200.0200.0240.0240.0240.0270.027
0.0400.0500.0600.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.0700.070
0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
0.741.071.421.782.572.903.684.475.286.077.659.2510.8212.4214.0015.6017.1718.7720.3521.9523.5225.1226.7028.3029.8731.4733.0534.6537.8241.0044.1747.3550.5253.7056.8760.0563.2266.4069.5772.7575.9282.2788.6294.97101.32
0.100.100.100.130.130.130.130.130.130.130.130.130.130.130.180.230.230.230.230.230.230.250.250.250.280.280.280.330.330.330.380.380.460.460.460.460.460.510.510.510.610.610.610.690.69
1.021.271.521.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.781.78
0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08
O-R
ing
Stan
dard
Size
(AS
568A
)
-
www.gmors.com 30
O-Ring Standard Size (AS 568A)O
-Rin
g St
anda
rdSi
ze (A
S 56
8A)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0046A0047A0048A0049A0050A0102A0103A0104A0105A0106A0107A0108A0109A0110A0111A0112A0113A0114A0115A0116A0117A0118A0119A0120A0121A0122A0123A0124A0125A0126A0127A0128A0129A0130A0131A0132A0133A0134A0135A0136A0137A0138A0139A0140A0141
4 1/ 44 1/ 24 3/ 45 5 1/ 4 1/16 3/32 1/ 8 5/32 3/16 7/32 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 13/161 7/ 81 15/162 2 1/162 1/ 82 3/162 1/ 42 5/16
4 3/ 84 3/ 84 7/ 85 1/ 85 3/ 8 1/ 4 9/32 5/16 11/32 3/ 8 13/32 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 13/161 7/ 81 15/162 2 1/162 1/ 82 3/162 1/ 42 5/162 3/ 82 7/162 1/ 2
1/16 1/16 1/16 1/16 1/16 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32
4.2394.4894.7394.9895.2390.0490.0810.1120.1430.1740.2060.2370.2990.3620.4240.4870.5490.6120.6740.7370.7990.8620.9240.9871.0491.1121.1741.2371.2991.3621.4241.4871.5491.6121.6741.7371.7991.8621.9251.9872.0502.1122.1752.2372.300
0.0300.0300.0300.0370.0370.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0100.0100.0100.0100.0100.0100.0120.0120.0120.0120.0120.0120.0150.0150.0150.0150.0150.0150.0170.0170.0170.0170.0170.0170.020
0.0700.0700.0700.0700.0700.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.103
0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
107.67114.02120.37126.72133.071.242.062.843.634.425.236.027.599.1910.7712.3713.9415.5417.1218.7220.2921.8923.4725.0726.6428.2429.8231.4232.9934.5936.1737.7739.3440.9442.5244.1245.6947.2948.9050.4752.0753.6455.2556.8258.42
0.760.760.760.940.940.130.130.130.130.130.130.130.130.130.130.130.180.230.230.230.250.250.250.250.250.250.300.300.300.300.300.300.380.380.380.380.380.380.430.430.430.430.430.430.51
1.781.781.781.781.782.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.62
0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 31
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0142A0143A0144A0145A0146A0147A0148A0149A0150A0151A0152A0153A0154A0155A0156A0157A0158A0159A0160A0161A0162A0163A0164A0165A0166A0167A0168A0169A0170A0171A0172A0173A0174A0175A0176A0177A0178A0201A0202A0203A0204A0205A0206A0207A0208
2 3/ 82 7/162 1/ 22 9/162 5/ 82 11/162 3/ 42 13/162 7/ 83 3 1/ 43 1/ 23 3/ 44 4 1/ 44 1/ 24 3/ 45 5 1/ 45 1/ 25 3/ 46 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 4 3/16 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8
2 9/162 5/ 82 11/162 3/ 42 13/162 7/ 82 15/163 3 1/163 3/163 7/163 11/163 15/164 3/164 7/164 11/164 15/165 3/165 7/165 11/165 15/166 3/166 7/166 11/166 15/167 3/167 7/167 11/167 15/168 3/168 7/168 11/168 15/169 3/169 7/169 11/169 15/16 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8
3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 3/32 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8
2.3622.4252.4872.5502.6122.6752.7372.8002.8622.9873.2373.4873.7373.9874.2374.4874.7374.9875.2375.4875.7375.9876.2376.4876.7376.9877.2377.4877.7377.9878.2378.4878.7378.9879.2379.4879.7370.1710.2340.2960.3590.4210.4840.5460.609
0.0200.0200.0200.0200.0200.0220.0220.0220.0220.0240.0240.0240.0280.0280.0300.0300.0300.0350.0350.0350.0350.0350.0400.0400.0400.0400.0450.0450.0450.0450.0500.0500.0500.0500.0550.0550.0550.0050.0050.0050.0050.0050.0050.0070.009
0.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1030.1390.1390.1390.1390.1390.1390.1390.139
0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0040.0040.0040.0040.0040.0040.0040.004
59.9961.6063.1764.7766.3467.9569.5271.1272.6975.8782.2288.5794.92101.27107.62113.97120.32126.67133.02139.37145.72152.07158.42164.77171.12177.47183.82190.17196.52202.87209.22215.57221.92228.27234.62240.97247.324.345.947.529.1210.6912.2913.8715.47
0.510.510.510.510.510.560.560.560.560.610.610.610.710.710.760.760.760.890.890.890.890.891.021.021.021.021.141.141.141.141.271.271.271.271.401.401.400.130.130.130.130.130.130.180.23
2.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.622.623.533.533.533.533.533.533.533.53
0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.100.100.100.100.100.100.100.10
-
www.gmors.com 32
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0209A0210A0211A0212A0213A0214A0215A0216A0217A0218A0219A0220A0221A0222A0223A0224A0225A0226A0227A0228A0229A0230A0231A0232A0233A0234A0235A0236A0237A0238A0239A0240A0241A0242A0243A0244A0245A0246A0247A0248A0249A0250A0251A0252A0253
11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 5/ 81 3/ 41 7/ 82 2 1/162 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 8
15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 81 11/161 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 8
1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8
0.6710.7340.7960.8590.9210.9841.0461.1091.1711.2341.2961.3591.4211.4841.6091.7341.8591.9842.1092.2342.3592.4842.6092.7342.8592.9843.1093.2343.3593.4843.6093.7343.8593.9844.1094.2344.3594.4844.6094.7344.8594.9845.1095.2345.359
0.0090.0100.0100.0100.0100.0100.0100.0120.0120.0120.0120.0120.0120.0150.0150.0150.0180.0180.0180.0200.0200.0200.0200.0240.0240.0240.0240.0240.0240.0240.0280.0280.0280.0280.0280.0300.0300.0300.0300.0300.0350.0350.0350.0350.035
0.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.139
0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
17.0418.6420.2221.8223.3924.9926.5728.1729.7431.3432.9234.5236.0937.6940.8744.0447.2250.3953.5756.7459.9263.0966.2769.4472.6275.79 78.97 82.14 85.32 88.49 91.67 94.84 98.02 101.19 104.37 107.54 110.72 113.89 117.07 120.24 123.42 126.59 129.77 132.94 136.12
0.230.250.250.250.250.250.250.300.300.300.300.300.300.380.380.380.460.460.460.510.510.510.510.610.610.61 0.61 0.61 0.61 0.61 0.71 0.71 0.71 0.71 0.71 0.76 0.76 0.76 0.76 0.76 0.89 0.89 0.89 0.89 0.89
3.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.533.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53
0.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.100.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10
O-Ring Standard Size (AS 568A)
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 33
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0254A0255A0256A0257A0258A0259A0260A0261A0262A0263A0264A0265A0266A0267A0268A0269A0270A0271A0272A0273A0274A0275A0276A0277A0278A0279A0280A0281A0282A0283A0284A0309A0310A0311A0312A0313A0314A0315A0316A0317A0318A0319A0320A0321A0322
5 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 211 11 1/ 212 13 14 15 16 17 18 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 4
5 3/ 45 7/ 86 6 1/ 86 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 410 3/ 411 1/ 411 3/ 412 1/ 413 1/ 414 1/ 415 1/ 416 1/ 417 1/ 418 1/ 4 13/16 7/ 8 15/161 1 1/161 1/ 81 3/161 1/ 41 5/161 3/ 81 7/161 1/ 21 9/161 5/ 8
1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 1/ 8 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16
5.4845.6095.7345.8595.9846.2346.4846.7346.9847.2347.4847.7347.9848.2348.4848.7348.9849.2349.4849.7349.98410.48410.98411.48411.98412.98413.98414.98415.95516.95517.9550.4120.4750.5370.6000.6620.7250.7870.8500.9120.9751.0371.1001.1621.225
0.0350.0350.0350.0350.0350.0400.0400.0400.0400.0450.0450.0450.0450.0500.0500.0500.0500.0550.0550.0550.0550.0550.0650.0650.0650.0650.0650.0650.0750.0800.0850.0050.0050.0070.0090.0090.0100.0100.0100.0100.0100.0100.0120.0120.012
0.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.1390.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.210
0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0040.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
139.29 142.47 145.64 148.82 151.99 158.34 164.69 171.04 177.39 183.74 190.09 196.44 202.79 209.14 215.49 221.84 228.19 234.54 240.89 247.24 253.59 266.29 278.99 291.69 304.39 329.79 355.19 380.59 405.26 430.66 456.06 10.46 12.07 13.64 15.24 16.81 18.42 19.99 21.59 23.16 24.77 26.34 27.94 29.51 31.12
0.89 0.89 0.89 0.89 0.89 1.02 1.02 1.02 1.02 1.14 1.14 1.14 1.14 1.27 1.27 1.27 1.27 1.40 1.40 1.40 1.40 1.40 1.65 1.65 1.65 1.65 1.65 1.65 1.91 2.03 2.16 0.13 0.13 0.18 0.23 0.23 0.25 0.25 0.25 0.25 0.25 0.25 0.30 0.30 0.30
3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 3.53 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33
0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13
-
www.gmors.com 34
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0323A0324A0325A0326A0327A0328A0329A0330A0331A0332A0333A0334A0335A0336A0337A0338A0339A0340A0341A0342A0343A0344A0345A0346A0347A0348A0349A0350A0351A0352A0353A0354A0355A0356A0357A0358A0359A0360A0361A0362A0363A0364A0365A0366A0367
1 5/161 3/ 81 1/ 21 5/ 81 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 2
1 11/161 3/ 41 7/ 82 2 1/ 82 1/ 42 3/ 82 1/ 22 5/ 82 3/ 42 7/ 83 3 1/ 83 1/ 43 3/ 83 1/ 23 5/ 83 3/ 43 7/ 84 4 1/ 84 1/ 44 3/ 84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 86 1/ 46 3/ 86 5/ 86 7/ 87 1/ 87 3/ 87 5/ 87 7/ 8
3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16
1.2871.3501.4751.6001.7251.8501.9752.1002.2252.3502.4752.6002.7252.8502.9753.1003.2253.3503.4753.6003.7253.8503.9754.1004.2254.3504.4754.6004.7254.8504.9755.1005.2255.3505.4755.6005.7255.8505.9756.2256.4756.7256.9757.2257.475
0.0120.0120.0150.0150.0150.0150.0180.0180.0180.0180.0200.0200.0200.0200.0240.0240.0240.0240.0240.0280.0280.0280.0280.0280.0300.0300.0300.0300.0300.0300.0370.0370.0370.0370.0370.0370.0370.0370.0370.0400.0400.0400.0400.0450.045
0.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.210
0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
32.69 34.29 37.47 40.64 43.82 46.99 50.17 53.34 56.52 59.69 62.87 66.04 69.22 72.39 75.57 78.74 81.92 85.09 88.27 91.44 94.62 97.79
100.97 104.14 107.32 110.49 113.67 116.84 120.02 123.19 126.37 129.54 132.72 135.89 139.07 142.24 145.42 148.59 151.77 158.12 164.47 170.82 177.17 183.52 189.87
0.30 0.30 0.38 0.38 0.38 0.38 0.46 0.46 0.46 0.46 0.51 0.51 0.51 0.51 0.61 0.61 0.61 0.61 0.61 0.71 0.71 0.71 0.71 0.71 0.76 0.76 0.76 0.76 0.76 0.76 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 1.02 1.02 1.02 1.02 1.14 1.14
5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33
0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13
O-Ring Standard Size (AS 568A)
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 35
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0368A0369A0370A0371A0372A0373A0374A0375A0376A0377A0378A0379A0380A0381A0382A0383A0384A0385A0386A0387A0388A0389A0390A0391A0392A0393A0394A0395A0400A0401A0402A0403A0404A0405A0406A0407A0408A0409A0410A0411A0412A0413A0414A0415A0416
7 3/ 48 8 1/ 48 1/ 28 3/ 49 9 1/ 49 1/ 29 3/ 410 10 1/ 211 11 1/ 212 13 14 15 16 17 18 19 20 21 22 23 24 25 26 1 3/81 1/21 5/81 3/41 7/822 1/82 1/42 3/82 1/22 5/82 3/42 7/833 1/83 1/43 3/8
8 1/ 88 3/ 88 5/ 88 7/ 89 1/ 89 3/ 89 5/ 89 7/ 810 1/ 810 3/ 810 7/ 811 3/ 811 7/ 812 3/ 813 3/ 814 3/ 815 3/ 816 3/ 817 3/ 818 3/ 819 3/ 820 3/ 821 3/ 822 3/ 823 3/ 824 3/ 825 3/ 826 3/ 81 7/822 1/82 1/42 3/82 1/22 5/82 3/42 7/833 1/83 1/43 3/83 1/23 5/83 3/43 7/8
3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 3/16 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4
7.7257.9758.2258.4758.7258.9759.2259.4759.7259.975
10.47510.97511.47511.97512.97513.97514.97515.95516.95517.95518.95519.95520.95521.95522.94023.94024.94025.9401.3501.4751.6001.7251.8501.9752.1002.2252.3502.4752.6002.7252.8502.9753.1003.2253.350
0.0450.0450.0500.0500.0500.0500.0550.0550.0550.0550.0600.0600.0650.0650.0650.0700.0700.0750.0800.0850.0900.0950.0950.1000.1050.1100.1150.1200.0130.0140.0150.0160.0170.0180.0190.0200.0210.0220.0230.0240.0250.0260.0260.0280.029
0.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2100.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275
0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
196.22 202.57 208.92 215.27 221.62 227.97 234.32 240.67 247.02 253.37 266.07 278.77 291.47 304.17 329.57 354.97 380.37 405.26 430.66 456.06 481.46 506.86 532.26 557.66 582.68 608.08 633.48 658.88 34.2937.4740.6443.8246.9950.1753.3456.5259.6962.8766.0469.2272.3975.5778.7481.9285.09
1.14 1.14 1.27 1.27 1.27 1.27 1.40 1.40 1.40 1.40 1.52 1.52 1.65 1.65 1.65 1.78 1.78 1.91 2.03 2.16 2.29 2.41 2.41 2.54 2.67 2.79 2.92 3.05 0.330.360.390.410.440.460.480.510.540.560.590.610.640.660.670.710.73
5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 5.33 6.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.99
0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.13 0.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.15
-
www.gmors.com 36
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
STANDARD O-RINGMEASUREMENTS IN
INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
ID ID IDOD CS CS CSA0417A0418A0419A0420A0421A0422A0423A0424A0425A0426A0427A0428A0429A0430A0431A0432A0433A0434A0435A0436A0437A0438A0439A0440A0441A0442A0443A0444A0445A0446A0447A0448A0449A0450A0451A0452A0453A0454A0455A0456A0457A0458A0459A0460A0461
3 1/23 5/83 3/43 7/844 1/84 1/44 3/84 1/ 24 5/ 84 3/ 44 7/ 85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 46 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 29 9 1/ 210 10 1/ 211 11 1/ 212 12 1/ 213 13 1/ 214 14 1/ 215 15 1/ 216
44 1/84 1/44 3/84 1/24 5/84 3/44 7/85 5 1/ 85 1/ 45 3/ 85 1/ 25 5/ 85 3/ 45 7/ 86 6 1/ 86 1/ 46 3/ 86 1/ 26 3/ 47 7 1/ 47 1/ 27 3/ 48 8 1/ 48 1/ 29 9 1/ 210 10 1/ 211 11 1/ 212 12 1/ 213 13 1/ 214 14 1/ 215 15 1/ 216 16 1/ 2
1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4
3.4753.6003.7253.8503.9754.1004.2254.3504.4754.6004.7254.85
4.9755.1005.2255.3505.4755.6005.7255.8505.9756.2256.4756.7256.9757.2257.4757.7257.9758.4758.9759.4759.975
10.47510.97511.47511.97512.47512.97513.47513.97514.47514.97515.47515.955
0.0300.0310.0320.0330.0330.0340.0350.0360.0330.0330.0330.0330.0370.0370.0370.0370.0370.0370.0370.0370.0370.0400.0400.0400.0400.0450.0450.0450.0450.0550.0550.0550.0550.0600.0600.0600.0600.0600.0600.0700.0700.0700.0700.0700.075
0.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.280.280.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275
0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
88.2791.4494.6297.79
100.97104.14107.32110.49113.67116.84120.02123.19126.37129.54132.72135.89139.07142.24145.42148.59151.77158.12164.47170.82177.17183.52189.87196.22202.57215.27227.97240.67253.37266.07278.77291.47304.17316.87329.57342.27354.97367.67380.37393.07405.26
0.750.790.810.830.840.870.890.910.840.840.840.840.940.940.940.940.940.940.940.940.941.021.021.021.021.141.141.141.141.41.41.41.41.521.521.521.521.521.521.781.781.781.781.781.91
6.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.996.99
0.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.150.15
O-Ring Standard Size (AS 568A)
-
GE MAO RUBBER INDUSTRIAL CO., LTD. 37
O-R
ing
Stan
dard
Size
(AS
568A
)
O-Ring Standard Size (AS 568A)
O-Ring For Use With Internal Straight Thread Fluid ConnectionBosses And Tube Fittings
AS 568ASIZE
AS 568ASIZE
NOMINAL (REF.)MEASUREMENTS IN
INCHES
NOMINAL (REF.)
STANDARD O-RINGMEASUREMENTS IN
INCHES
MEASUREMENTS IN INCHES
METRIC O-RINGMEASUREMENTS IN
MILLIMETERS
MEASUREMENTS IN MILLIMETERS
ID ID
ID
ID
ID
OD
OD
CS CS
CS
CS
CS
A0462A0463A0464A0465A0466A0467A0468A0469A0470A0471A0472A0473A0474A0475
A0901A0902A0903A0904A0905A0906A0907A0908A0909A0910A0911A0912A0913A0914A0916A0918A0920A0924A0928A0932
16 1/ 217 17 1/ 218 18 1/ 219 19 1/ 220 21 22 23 24 25 26
17 17 1/ 218 18 1/ 219 19 1/ 220 20 1/ 221 1/ 222 1/ 223 1/ 224 1/ 225 1/ 226 1/ 2
3/32 1/ 8 3/16 1/ 4 5/16 3/ 8 7/16 1/ 2 9/16 5/ 8 11/16 3/ 4 13/16 7/ 81 1 1/ 81 1/ 41 1/ 21 3/ 42
1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4 1/ 4
16.45516.95517.45517.95518.45518.95519.45519.95520.95521.95522.94023.94024.94025.940
0.0750.0800.0850.0850.0850.0900.0900.0950.0950.1000.1050.1100.1150.120
0.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.2750.275
0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
417.96430.66443.36456.06468.76481.46494.16506.86532.26557.66582.68608.08633.48658.88
1.912.032.162.162.162.292.292.412.412.542.672.792.923.05
6.996.996.996.996.996.996.996.996.996.996.996.996.996.99
0.150.150.150.150.150.150.150.150.150.150.150.150.150.15
0.1850.2390.3010.3510.4140.4680.5300.6440.7060.7550.8630.9240.9861.0471.1711.3551.4751.7202.0902.337
0.0050.0050.0050.0050.0050.0050.0070.0090.0090.0090.0090.0090.0100.0100.0100.0120.0140.0140.0180.018
0.0560.0640.0640.0720.0720.0780.0820.0870.0970.0970.1160.1160.1160.1160.1160.1160.1180.1180.1180.118
0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0040.0040.0040.0040.0040.0040.0040.0040.0040.004
4.70 6.077.658.92
10.5211.8913.4616.3617.9319.1821.9223.4725.0426.5929.7434.4237.4743.6953.0959.36
0.130.130.130.130.130.130.180.230.230.230.230.230.250.250.250.300.360.360.460.46
1.421.631.631.831.831.982.082.212.462.462.95 2.95 2.95 2.95 2.95 2.95 3.00 3.00 3.00 3.00
0.080.080.080.080.080.080.080.080.080.080.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10 0.10
-
www.gmors.com 38
MEASUREMENTS IN MILLIMETERS
MEASUREMENTS IN MILLIMETERS
MEASUREMENTS IN INCHES
MEASUREMENTS IN INCHES
ID ID CS CS
3.10 4.10 5.10 6.10 7.10 8.10 9.10 10.10 11.10 12.10 13.10 14.10 15.10 16.10 17.10 18.10 19.10 20.10 21.10 22.10 25.10 27.10 29.10 32.10 35.10 37.10 3.60 4.60 5.60 6.60 7.60 8.60 9.60 10.60 11.60 12.60 13.60 14.60 15.60 16.60 17.60 18.60 19.60 20.60 21.60 24.60 27.60 29.60 31.60 34.60 35.60
37.60 39.60 41.60 44.60 45.60 47.60 49.60 51.60 54.60 55.60 57.60 58.60 59.60 61.60 62.60 64.60 67.60 69.60 19.50 21.50 22.50 24.50 25.50 26.50 27.50 29.50 31.50 32.50 34.50 35.50 36.50 37.50 39.50 41.50 42.50 44.50 49.50 54.50 55.50 57.50 59.50 62.50 64.50 69.50 74.50 79.50 84.50 89.50 94.50 99.50 104.50
0.14 0.14 0.15 0.16 0.17 0.18 0.18 0.19 0.20 0.21 0.21 0.22 0.23 0.24 0.24 0.25 0.26 0.27 0.27 0.28 0.30 0.32 0.33 0.35 0.37 0.39 0.14 0.15 0.16 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.22 0.22 0.23 0.24 0.25 0.25 0.26 0.27 0.28 0.30 0.32 0.33 0.35 0.37 0.38
1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40
0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.09
0.39 0.41 0.42 0.44 0.45 0.46 0.48 0.49 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.60 0.62 0.26 0.28 0.28 0.30 0.31 0.31 0.32 0.33 0.35 0.36 0.37 0.38 0.38 0.39 0.41 0.42 0.43 0.44 0.48 0.51 0.52 0.53 0.55 0.57 0.58 0.62 0.65 0.68 0.72 0.75 0.79 0.82 0.86
2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 2.40 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00 3.00
0.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.090.09
O-Ring Standard Size (BS 4518)O
-Rin
g St
anda
rdSi
ze (B
S 45
18)
ID ID CS CS
0.122 0.161 0.201 0.240 0.280 0.319 0.358 0.398 0.437 0.476 0.516 0.555 0.594 0.634 0.673 0.713 0.752 0.791 0.831 0.870 0.988 1.067 1.146 1.264 1.382 1.461 0.142 0.181 0.220 0.260 0.299 0.339 0.378 0.417 0.457 0.496 0.535 0.575 0.614 0.654 0.693 0.732 0.772 0.811 0.850 0.969 1.087 1.165 1.244 1.362 1.402
1.480 1.559 1.638 1.756 1.795 1.874 1.953 2.031 2.150 2.189 2.268 2.307 2.346 2.425 2.465 2.543 2.661 2.740 0.768 0.846 0.886 0.965 1.004 1.043 1.083 1.161 1.240 1.280 1.358 1.398 1.437 1.476 1.555 1.634 1.673 1.752 1.949 2.146 2.185 2.264 2.343 2.461 2.539 2.736 2.933 3.130 3.327 3.524 3.720 3.917 4.114
0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.008 0.008 0.008 0.009 0.009 0.009 0.009 0.010 0.010 0.011 0.011 0.011 0.012 0.013 0.013 0.014 0.015 0.015 0.006 0.006 0.006 0.006 0.007 0.007 0.007 0.007 0.008 0.008 0.009 0.009 0.009 0.009 0.010 0.010 0.010 0.011 0.011 0.012 0.013 0.013 0.014 0.015 0.015
0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.063 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094
0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004
0.015 0.016 0.017 0.017 0.018 0.018 0.019 0.019 0.020 0.020 0.021 0.021 0.022 0.022 0.022 0.023 0.024 0.024 0.010 0.011 0.011 0.012 0.012 0.012 0.013 0.013 0.014 0.014 0.015 0.015 0.015 0.015 0.016 0.017 0.017 0.017 0.019 0.020 0.020 0.021 0.022 0.022 0.023 0.024 0.026 0.027 0.028 0.030 0.031 0.032 0.034
0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.094 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118 0.118
0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004