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NATI.NALAER'SPA.ESTANDARD ffiO COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED NAnoNAt *cnospAc: sTAtrBARos
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USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NANONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUAUFY SUPPLIERS OR CERNFYCONFORIYANCE OF ITEIVIS PRODUCED I.]NDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE SUITABILITY OF
I
DFqCRIPTTON
TABLE OF CONTENTS
FED. SUPPLY CLASS
5340
)1
7 MATFRTAI )
? THRFADS )
4 TAPPFD HOI F )
5 RFDIICFD FTRST COTI 3
6. DTMENSTONAL DATA 3
7.
8.
9.
10
11
DEPTH OF RECOMMENDED MINIMUM TAP DRILL HOLE
DEPTH OF FULL THREAD OF TAPPED HO1E...........
LENGTH OF BOLT THREAD PRO]ECTION
COUNTERSINK AN D COUNTERBORE
INSTAI I ATTON OF TNSFRT
...,...........3
a..,......,.,,,,J
A
4
t2.
1?
BLrND HOLE ASSEMBLY (WITHOUT REMOVAL OF TANG)...
GACTNC PRAT-TI'F
...,.4
4
14 PFRMTTTFD MODTFTCATTONS 5
FIGURE
FTGI IRF T 5
TABLES
TABI FT_PARTNIIMBFRq 5
TABLE II - LENGTHS OF THREAD ENGAGEMENT IN TERMS OF NOMINAL THREAD SIZE.,.,.....,..
TABLE IIi _ FORMULAS FOR DIMENSIONS,....,......
TARI F T\/- DTMFNqTONq
...,...6
.......6
7
@ covrerrElY REVISED@
Reproduced By IHS
Vvith The Permission Of AIA,/NAS
Under Royalty Agreement
THE INITIAL RELEASE OF THIS DOCUMENT SUPERSEDES MS33537, REVISION E, AMENDMENT 1. PART NUMBERS REMAIN MS33537
CUSTODIAN
NATIONAL AEROSPACE STANDARDS COMMITTEE
REViS]ON
2
PROCUREMENTSPECIFICATION
NONE
TITLE
INSERT, SCREW THREAD, HELTCAL COrL rNCH SERTES,COARSE AND FINE THREAD, STANDARD ASSEMBLY
DIMENSIONS FOR
CLASSIFICATIONDESIGN STANDARD
NASM33s37SHEET 1 OF 13
3ffi,^^,@(f
*m NATIONAL AEROSPACE STANDARD@ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
GENERAL INSTRUCTIONS
DESCRIPTION
Helical coil inserts are screw thread bushings coiled from diamond shaped cross-section wire. They are screwed intotapped holes to form nominal size internal threads. InserLs are installed by torquing through a diametral tang whichis notched for tang removal.
MATERIAL
As specified on the drawing.
THREADS
Assembled insefts, Classes 28 and 38, are controlled by the tolerance range of the tapped hole into which insert isfitted. Due to the radius on the crest of the inseft at the minor diameter, the assembled insert will accept externalthreaded pafts which are threaded to ASBB79. The grip coil or coils of the screw locking insert are shaped toprovide a prevailing torque when the screw is installed in the assembled inseft.
TAPPED HOLE
600 Unified Internal thread form with the minimum major diameter based on a truncation to 0.125p.
Designation for taoped hole
The drawing note for the tapped hole, per table IV, that will accept the helical coil inseft shall be in accordance withthe following examples:
EXAMPLE 1
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,3125-24 UNF-3B HELICAL COILINSERT THD PER NASM33537.67 MIN FULL THD DEPTH
For Blind Hole (Based on 2 DiameterEngagement) (Minor Diameter Drill DepthTolerance approx. .060 or as otherwiseappropriate)
MINOR DIA .3215-.3288 x .791-.851 DEEP.36-.39 DIA x 115o-125o CSKTHD PER NASM33537 FOR,3125-24 UNF-38 HELICAL COIL INSERT.67 MIN FULL THD DEPTHPITCH DIA ,3395-,3427MA]OR DIA.3666 MIN
,3125.24 UNF-38 HELICAL COILINSERT THD THRU PER NASM33537 INSTALLINSERT ,75-T,5 TURNS BELOW SURFACEREMOVE TANG - (NOT REQUIRED WITHTANGLESS INSERTS)
For thru hole with Insert being Assembled(Based on 2 Diameter Engagement)
MINOR DIA .3215-.3288 THRU.36-.39 DIA x 115o-125o CSK
THD THRU PER NASM33537 FOR,3125-24 UNF-38 HELICAL COIL INSERTPITCH DIA .3395-.3427MAJOR DIA .3666 MININSTALL INSERT ,75-T,5 TURNSBELOW SURFACE
REMOVE TANG - (NOT REQUIRED WITHTANGLESS INSERTS)
EMMPLE 2
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USE OF OR RELIANCE UPON THIS DOCUN4ENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFYCoNFoRTYANCE OF ITEI4S PRODUCED UNDER NATTONAL AEROSPACE STANDARDS. ArA I4AKES NO REPRESENTATION OR CLAITY RESPECTTNG (1) THE SUTTABILITY OF
2.
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5. REDUCED FIRST COIL
The first coil of the free inseft adjacent to the tang has been reduced in diameter on the larger inserts to facilitatestafting the inseft into the tapped hole.
DIMENSIONAL DATA
For free running and screw locking insefts having a nominal length of 1, 7.5, 2,2.5, and 3 times the nominal majordiameter of the screw thread, dimensional data for the following features have been calculated and are listed inTable IV:
Nominal length (Ln)
Length of assembled inseft (L)Tapped hole diameters (V, V1, V2)
Depth of drilling and tapping (FP, FB, and H)Countersink diameters (M)Required bolt thread projection (J and K)
For all other nonstandard variations in nominal length, the above dimensions shall be calculated from the formulasgiven in Table III, using rounding procedures contained in ASTM SI 10.
See Table I for MS part numbers and nominal lengths of available insefts.
INSERT LENGTH SELECTION:
For applications where the tensile strength of the installed insert is a consideration, Table II will aid in applying thestandard design practice of relating the tensile strength of the bolt material against the shear strength of the parent
or boss material to develop the full load value of the bolt rather than stripping the parent or tapped material. Inusing this table, the following factors must be considered.
Actual bolt tensile strength, particularly in the lower bolt tensile ranges/ may be significantly higher than thenominal values. This should be considered in insert length selection.
The parent material shear strengths are for room temperature. Elevated temperatures significantly reduce shearstrength values; compensation should be made when required.
When parent material shear strength falls between two tabulated values, use the lower of the two.
DEPTH OF RECOMMENDED MINIMUM TAP DRILL HOLE
The tabulated depth of blind hole for thread tapping allows sufficient depth for assembled insert top coil to be 1.5pitches below boss sudace. For inseft sizes .3125 and smaller, drill depth FP provides for minimum full thread depthH, using a plug tap having 4 pitches tap chamfer, plus a length equal to 0.5 x nominal inseft size to clear the tapexternal center (conical end), plus 1 pitch tap end clearance. For insert sizes larger than .3125, drill depth FP is forplug tap having 4 pitches tap chamfer, plus 1 pitch tap end clearance. Drill depth FB is for bottoming taps having 2
pitches tap chamfer, plus 1 pitch tap end clearance. If tap drill holes are not countersun( the assembled insert topcoil may be 0.5 pitch max below boss suface which allows for a 1 pitch reduction in tabulated depth of blind drilledhole dimensions.
DEPTH OF FULL THREAD OF TAPPED HOIE
For thru or blind tapped holes with a countersink as specified in Table IV, the Minimum Full Thread, H (also
minimum flange thickness for thru hole), equals nominal length of insert, Ln, as specified in the tabulation, plus 1
pitch. For thru or blind tapped holes without countersink, the minimum full thread (also minimum flange thicknessfor thru hole) shall not be less than the nominal length of insert, Ln.
REVISION
2
6.
6.1
6.2
6.3
6.3.1
6.3.2
6.3.3
7.
8.
@ courer-rrElY REVIsED NASM33537
ffi NATT'NALAER,',A.E'TANDARD ffi@ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY
CONFORN{ANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA N4AKES NO REPRESENTATION OR CLAIN4 RESPECTING (1) THE SUITABILITY OF
Ar{A NATT,NAL AERosPAcE 'TANDARD€) COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
LENGTH OF BOLT THREAD PROJECTION
INSERT WITH TANG REMOVED
The maximum length of bolt thread projection, J, into the assembled inseft in a blind hole is equal to the minimumdesign depth of the tap drill hole, FP or FB. The minimum length of bolt thread projection to provide full threadengagement and thus to ensure full development of potential joint tensile strength is J616. It is equal to themaximum length, L, of the inseft, plus 3 pitch (the maximum depth of the assembled inseft top coil from bosssurface, 1.5 pitch, plus bolt chamfer 1.5 pitch). Bolt projectiofl, Jmin, will also ensure full engagement with the gripcoil or coils of a screw locking inseft.
INSERT WITHOUT TANG REMOVED
The maximum length of bolt thread projection, K, into the assembled insert when tang is not removed is theminimum length of insert plus 0.25 pitch.
COUNTERSIN K AND COUNTERBORE
The values given in Table IV for Depth of Hole, FP, FB, Minimum Full Thread H, and Length of Bolt Projection, J andK, are measured from the top surface of the boss or piece and are based on installing the insert below thecountersink as in 11.1. If a counterbore or countersink other than that shown is required or no countersink is used,the values for FP, FB, H, J, and K must be modified to compensate.
INSTALLATION OF INSERT
WITH COUNTERSUNK HOLE
The top edge of the inseft shall be installed 0.75p to 1.5p below top surface of the tapped hole.
WITHOUT COUNTERSUNK HOLE
The top edge of the insert shall be installed 0.25p to 0.5p below top surface of tapped hole.
TANG REMOVAL
The tang should be removed from the insert after installation.
BLrND HOLE ASSEMBLY (WITHOUT REMOVAL OF TANG)
When the insert tang is not removed, as may be the case with blind hole applications/ an inseft 0.5 diameter longerthan the required nominal length will fulfill the necessary bolt-insert full thread engagement, provided that the boltprojection satisfies the original Jmin drd the longer insert K,u* tabulated values.
GAGING PRACTICE
Accuracy of the finished thread, when the insert is installed, is dependent upon the accuracy of the tapped hole. Ifthe finished tapped hole gages satisfactorily, the installed insert will be within the thread tolerance when the insertmeets the drawing requirements. It is, therefore, not necessary to gage the installed insert. After the insert isinstalled, the GO thread plug gage may not enter freely because the insert may not have been fully seated in thetapped hole; however, the inseft should become seated after a bolt or screw is installed and tightened.
REV]SION
2
9.
9.1
11.
11. 1
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USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY, AIA DOES NOT QUAUFY SUPPUERS OR CERTIFY
CONFORMANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CTAIM RESPECTING (1) THE SUITABILITY OF
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USE OF OR RELIANCE UPON THIS DOCUI{ENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY
CONFORMANCE OF ITEIVIS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA IYAKES NO REPRESENTATION OR CLAIN4 RESPECTING (1) THE SUITABILITY OF
L4. PERMITTED MODIFICATIONS
Values for FP, FB, H, J, K, M, and installation depth of insert may be modified to suit requirements for productiontooling, design, assembly, etc. See Table III for formulas. Countersink included angle may be modified from1200 t 50 to 90" provided that for UNC sizes .190-24 and smaller and UNF sizes .4375-20 and smaller, the top edgeof the insert shall be installed 1.0 to 1.5p below top surface of the tapped hole.
TABLEI-PARTNUMBERSINSERT
NOMINALLENGTH
FREE RUNNING INSERTS SCREW LOCKING INSERTS
CRES AS7245 CRES NASM8846
COARSE F]NE COARSE FINE
l DIAM5t22076
thruMS122115
MS124651thru
MS124690
M521209C0210thru
t'qs2t209c24t0
M521209F0310thru
MS2L209F24t0
1.5 DIAMS122116
thruMS122155
MS124691thru
MS124730
MS21209C0215thru
t4s2t209c24t5
MS21209F0315thru
MS2L209F24t5
2 DIAMS122156
thruMS122195
MSL2473tthru
M5t24770
MS21209C0220thru
1v1521209C2420
M521209F0320thru
M52t209F2420
2.5 DIAMS122196
thruM5122235
M512477tthru
MS124810
MS21209C0225thru
M52t209C2425
MS21209F0325thru
M52t209F2425
3 DIAM5t22236
thrut4st22275
MS124811thru
MS124850
M521209C0230thru
M521209C2430
MS21209F0330thru
MS21209F2430
NASM21209 offers Cadmium Plating and Dry Fllm Lubricant Coating options.
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TANG REMOVED
iii
H COILSINSERTS
LOCKING COIL OR(SCREW LOCKING
oNLY)2 PITCH DRILL
CLEAMNCE PLUS
LENGTH OF TAPEXTERNAL CENTER
(CONICAL END)
4 PITCH PLUG
CHAMFER TAP
FIGURE I
1 PITCH DRILLCLEARANCE
2 PITCHBOTTOMINGCHAMFER TAP
@ cor'rer-rrElY REVTsED
REV]SION
2
NAS1.,133537SHEET 5
*k* NATI.NAL AERosPAcE STANDARD.r IEr, ! e r r.'ri -, * a)ii\ I t/ri !
rIJJI}'--?J 7''{'I @ COPYRIGHT 2013 AEROSPACE IilDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
TABLE
USE OF OR RELIANCE UPON THIS DOCUI4ENT OR ANY NATIONAL AEROSPACE STANDARD I5 ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFYcoNFoRlvlANcE OF lrEl4S PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. ArA I4AKES NO REPRESENTATTON OR CtAIt4 RESPECTING (1) THE SUITABTLITY OF
NAIIOiIII ATIOS'ACE SIANDAIOS
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Ln = Nominal Length of Inseft (Table IV)P = Pitch = 1 / Thread per InchB = Wire Height from NASM21209
D = Wire Pitch Line from NASM21209Dn = Nominal Inseft Size (Diameter)Vz = Tapped Hole Pitch Diameter (Table IV)
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TABLE II _ LENGTHS OF THREAD ENGAGEMENT IN TERMS OF NOMINAL THREAD SIZEShear
Strengthof Material
(psi) (Alum.,Maq. Steel)
Bolt Material Minimum Ultimate Tensile Strength (psi)
54,000 75,000 96,000 108,000 125,000 132,000 160,000 180,000 220,00010,000
15,000
20,000
25,000
30,000
40,000
50,000
2
L-Ll2
1
1
1
1
1
2-112
L-U2
r-u2
1
1
1
1
3
2
r-Ll2
L-t/2
1
1
1
3
2-Ll2
2
t-u2
r-Ll2
1
1
2-U2
2
r-tl2
t-L12
1
1
3
2
2
t-tl2
l-Ll2
1
3
2-112
2
2
r-u2
1
3
2-Ll2
2
1-Ll2
t-u2
3
2-tl2
2-U2
2
r-u2
III _ FOR DIMENSIONSINFORMATION REQUIRED
(SEE FIGURE 1)FORMULA
Length of Assembled Insert (L)Free Running and Screw Locking
Lrin=1"-0'75PLrax=Ln-0.5P
Depth of Recommended Minimum Tap Drill (FP or FB)for Blind Holes (Paragraph 7)
1. For Plug Taps .3125 Nominal Diameter and smaller:
FP=Ln+6P+0.5D"
2. For Plug Taps larger than .3125:
FP=Ln+6P
3. For Bottoming Taps:
FB=Ln+4PDepth of Full Thread of Blind Tapped Hole H
(also Min. Flange Thickness for Thru Tapped Hole)(Paraqraph B)
Hmin=Ln+1P
Countersink or Counterbore (M)(Paragraph 10)
Mrin = Vz max Class 38 * Br.* - Dr;nMrrr=Mmin+,030
Length of Bolt Thread Projection into Assembled Insert(J or K) (Paragraph 9)
1. Insert - Tang Removed
J,u, = FP.;n (blind hole depth for plug tap)J,s, = FB,;n (blind hole depth for bottoming tap)Jrin=L*u**JP
orJrin=Ln+2.5P
2. Insert - Tang Not Removed
Gur=Lrin+0.25P
WHERE:
NASM33537SHEET 6
*{e NATT'NAL AERosPAcE 'TANDARD.! Fgai !/:-1f. f 'rlflt jl J */? !
I t \ a,r: r,t f l.l.t @ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED ffiQzdUdUELozF
Qo
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USE OF OR RETIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY
CONFORN4ANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA I4AKES NO REPRESENTATION OR CLAIN4 RESPECTING (1) THE SUITABILITY OF
TABLE IV - DIMENSIONS
@ corurer-rrElY REVISED
.099
.148
.198
.248
.297
Insert Nominal Length, 1 DIAInsert Nominal Length, 1.5 DIAInsert Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIA
.073
.110
.t46
.t82
.2t9
.LL2
.168
.224
.280
.336
.t25
.188
.250
.3t2
.375Min Length of insert When
NominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
.093
.749
.205
.26t_317
ASSEI'4BLED INSERT PD, Max, Class 28PD, Max, Class 38
Minor Dia, Max, Class 28Minor Dia, Max, Class 38
TAPPED HOLE
Depth of Blind Hole for Plug Taps,lvlin When Nominal Length = 1 DIAl4in When Nominal Length = 1.5 DIAlvlin When Nominal Length = 2 DIA[4in When Nominal Length = 2.5 DIA
.782
.232
.281
.331
.380
.757
.200
.243
.266
.329
.136
.172
.209
.245
.Z6L
Depth of Blind Hole for Bottoming Taps,lvlin When Nominal Length = 1 DIAl4in When Nominal Length = 1.5 DIAlvlin When Nominal Length = 2 DIAlvlin When Nominal Length = 2.5 DIA
.t49
.t92
.23s
.278
.327
.225
.288
.350
.4tz
.475
NominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
PD, Max, Class 28PD, Max, Class 38
Minor Dia, lv'lax, Class 2BMinor Dia, l4ax, Class 38
Major Dia, Max, Class 28lvlajor Dia, Max, Class 38
THREAD PROJECT]ON
.125
.168
.211
.254
.297
.t64
.220
.276
.332
.388
.151
.200
.250
.300
.349
.tt2
.L49
.185
.227,258
Min, Tang Removed, When InsedNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
.188
.250
.312
.374
.438
.078
.rzt
.t64
.207
.250
.088
.138
.L87
.236
.285
.102
.158
.274
.270
.326
Max, Tang Not Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
.077
.120
.163
.206
.249
.7L2
.776
.238
.300
.362
NASM33537SHEET 7
NATToNAL AERosPAcE STANDARD fiftr4 t: Nr! i t4t: t:', t l, t I t t'k t t! \.t,l !.t{. /d ?'t 0 s
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NAIIONAI ATPOSPAC' 5'ANDAIOS
USE OF OR RELIANCE UPON THIS DOCUN4ENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIF/CONFORI4ANCEOFITEMSPRODUCEDUNDERNATIONALAEROSPACESTANDARDS. AIAMAKESNOREPRESENTATIONORCLAII4RESPECTING(1)THESUITABILITYOF
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@ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERIC& INC. ALL RIGHTS RESERVED
@ couer-rrElY REVTsED
ABLE IV - DIMENSIONSNoririnal Insert Size 38 54 .190 .276Threads Per In( 32 40 32 36 24 2' 74
L"
Insert Nominal Length, 1 DIAInsert Nominal Length, 1.5 DIAInsert Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIAInsert Nominal Lenoth. 3 DIA
138.207276,345.4t4
. i38
.207
.276
.345
.474
.t64
.246
.328
.410
.492
.164
.246
.328
.410
.492
.190
.28s
.380
.475\7n
.190
.285,380,475\7n
.2t6
.324
.432
.540644
ASSEN4BLED INSERT
L
Min Length of Insert WhenNominal Length=1DIANominal Length = 1.5 DIANominal Length=2DIANominal Length = 2.5 DIANominalLenqth=3DIA
.115
.184
.253
.322
.391
.119
.188
.257
.326
.395
.747,223.305.387.469
.743
.225
.307
.389
.47t
.159
.254
.349
.444
.s39
.167
.262
.357
.452
.547
.185
.293
.401
.509
.617
D2
PD, I4ax, Class 28PD, Max, Class 38PD, Min, Classes 28 & 3B
.t214
.t204
.1777
t25212431218
.1475
.1465
.t437
.7496
.t487
.1450
.t672
.1661
.1629
173617261697
193319221889
D1
Minor Dia, Max, Class 28N4inor Dia, Max, Class 3BMinor Dia, Min, Classes 28 & 38
.rt4
.7740
.1040
1191 1861110
13913891300
t427476t340
15615551450
L64L64t1560
18178071710
TAPPED HOLE
FP
Depth of Blind Hole for Plug Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nominal Lenqth = 3 DIA
.394
.464
.532
.602670
.357
.426
.495
.564
.633
.434
.516
.598
.680
.762
.413
.495
.577
.659
.747
.535
.630
.725,820.915
.472
.568
.662
.7s8A\)
.574
.682
.790
.8981 006
FB
Depth of Blind Hole for Bottoming Taps,Min When Nominal Length = 1 DIAMan When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nominal Length = 3 DIA
.263
.332
.407
.470s?q
.238
.307
.376
.445
.514
.289
.37t
.453
.535
.6t7
.275
.357
.439
.5216n?
.357,452.547.642
.315
.410
.505
.600
.69s
.383
.497
.599
.707
.815
H
Min Full Thread WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenqth=3DIA
.770
.240
.310
.380
.450
.160
.230
.300
.370
.440
.200
.280
.360
.440
.520
.190)70
.360
.440
.520
.230
.330
.420
.s20
.610
.220
.320
.410
.5 10
.600
.260
.370
.470
.s80
.690
v2PD, lYax, Class 28PD, Max, Class 38PD, 14in, Classes 2B & 3B
161 1
16011583
15691560i543
.1872
.1862
.1843
.1849
.1840
.182 1
.2203,2792.2770
.2133
.2t23
.2103
.2464
.2453
.2430Minor Dia, Max, Class 28Minor Dia, Max, Class 3BMinor Dia, Min, Classes 28 & 38
t5277527t448
.1503
.1 503
.1435
t78t77871708
.1771
.L771
.1701
.2087
.2080
.1990
.204t
.204t
.1968
.2347
.2340
.2250Major Dia, Ivlax, Class 2B
Major Dia, l,lax, Class 38Maior Dia, Min, Classes 28 & 38
185918491786
776717581705
.2720
.2110)0,46
.2069
.2060
.2001
.2s34
.2523
.2447
.2381
.237t
.2306
.2795
.2784
.2701
M
Countersink, 120o Included AngleMaximumlvlinimum
,1n.180
.200
.770.230.200
.230200
.270
.240.260.230
.290
.260
THREAD PROJECTION
l
Min, Tang Removed, When InsertNominal Length=lDIANominal Length = 1.5 DIANominal Length=2DIANominal Length = 2.5 DIANominal Lenqth=3DIA
.2t6
.285
.354
.423
.492
.200
.270
.338
.408
.476
.242
.324
.406
.488
.570
.233
.315
.397
.479
.s61
.294
.389
.484
.579
.674
.268
.363
.458
.553
.648
.320
.428
.s36
.644
.752
K
Max, Tang Not Removed. When InseftNominal Length=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenoth=3DIA
.t22
.191
.260
.329?qR
.t26
.t94,264.332.402
.749
.237
.313
.395
.477
.1s0
.232
.374
.396
.478
.169
.264
.3s9
.45454q
.775
.270
.36s
.460qs5
.195
.303
.411
.5196)7
-4 j; krttlt,t..t'l !lrlrs, */1,)_-1i\i){lr-{?J.l I
()zdUdu=rozoF()o
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EtNo6<Z-S
Ec=fr=hts8=uoE<i<
NATIONAL AEROSPACE STAN DARD@ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
USE OF OR RELIANCE UPON THIS DOCUIVIENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPUERS OR CERTIFY
CONFORMANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTATION OR CLAIIVI RESPECTING (1) THE SUITABILITY OF
FU<,J<U6IuFFodd
|4EY2=v*x6i,dzd<<I6t-<fil,o EFJ
a96-U>HHEE<U@=6nuiidU+
16,,rz =,-
=ed<ts2N9996==duFdd
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=dor
- DIMENSIONS (CONTINUED
@ cor,rer-rrELY REVISED
.375
.562
.750
.938L.tzl
.250
.375
.500
.625
.750
Insert Nomanal Length, 1 DIAInsert Nominal Length, 1.5 DIAInseft Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIAInsert Nominal Lenoth, 3 DIA
.312
.469
.625
.781
.938
.212
.338
.462
.588
.712
.223
.348
.473
.598
.723
Min Length of Insert WhenNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
ASSEMBLED INSERT PD, Max, Class 28PD, Max, Class 38
Minor Dia, Max, Class 28Minor Dia, Max, Class 38
Depth of Blind Hole for Plug Taps,
Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DiAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIA
.8671.0861.30sr.524t.743
TAPPED HOLE
Depth of Blind Hole for Bottoming Taps,Min When Nominal Length = 1 DIAlvlin When Nominal Length = 1.5 DIAl.4in When Nominal Length = 2 DIAI'4in When Nominal Length = 2.5 DIAMin When Nominal Lenqth =
.300
.430
.550
.680
.800
Min. Full Thread WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
PD, Max, Class 28PD, Max, Class 38
Minor Dia, l4ax, Class 28Minor Dia, N4ax, Class 38
Major Dia, Max, Class 28Major Dia, Max, Class 38
lvlin, Tang Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
.416E'2
.729
.885t.042THREAD PRO]ECTION
.29t
.448
.604
.760
.915
.232
.357
.482
.607
.732
.285
.44t
.597
.754
.910
Max, Tang Not Removed, When InsertNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
.{ ii f,.r r Ala:t'r.{ ala:J t {l!t {
(Jz
UduzIozFsa
9ad .!F 6:-lE:i,-od<Zz>ux2?dPfi59d6JUOG<H<
NATI'NALAERosPAcE'TANDARD ffiNAIIONAT ATRD$'A(T s'ANBA OS
USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFYCONFORN4ANCE OF ITEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA N4AKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE SUITABILITY OF
FU<:J<udruF=tFOddou'^I>z
==Sxooazd<<IOFZn< iilFL
FJzoo>Ptr=UAHJU<UoEoXuid-
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=doL
@ COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
@ corver-rrElY REVTsED
ABLE IV - CONTINominal Insert Size .500 .5625 625 .750Threads Per Inch 1J 20 t7 18 18 10 16
L
Insert Nominal Length, 1 DIAInsert Nominal Length, 1.5 DIAInsert Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIAInsert Nominal Lenqth, 3 DIA
.500
.7501.0001.2501.500
.500
.7501.0001.2501.500
.562
.8441.7251.4061.588
.562
.844t.t2s1.4051.688
.625
.9381.2501.5621.875
.625
.9381.2501.5621.875
.750L.L251.5001.875) )\o
.7501.1251.5001.875) )\n
L
Min Length of Insert WhenNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANnmin:l lpnnth = ? DTA
.442
.692
.942t.t921 44-)
.462
.712
.9621.2t21 46)
.500
.78t1.062t.3441 6)q
.527
.8021.0831.36s1 646
.557
.8691.1821.4941.807
.583
.8961.2081.5211.833
.6751.0507.4251.8002.175
.7031.0781.4531.8282.203
INSERTD2
PD, Max, Class 28PD, Max, Class 38PD. Min. Classes 28 & 38
.4565
.4548
.4500
.4731
.47t7
.4675
.5 152
.5135<oR4
.5323
.5308
.5264
,5732.5774.5560
594959345889
.6927
.69076R50
.7t59
.7143
.7094
D1
Minor Dia, Max, Class 28Minor Dia, Max, Class 38Minor Dia, Min, Classes 28 & 38
.434
.4284
.4t70
.457
.4537
.4460
.490
.4843
.4720
,515.5106.5020
.546
.539 1
.5270
.578
.5730
.5650
.663
.654564)n
.696
.69085R70
TAPPED HOLE
FP
Depth of Blind Hole for Plug Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nnminal I endth = ? DIA
.9627,2t27,462t.7727.962
.8001.0501.3001.5501 ROO
1.0621.3431.6241.9052 1R6
.89st.t767.4571.738, n1q
7.1701.4831.7952.108) 4)n
.9587.2711.5831.8962.20A
1.3507.7252.1002.4752.850
t.1251.5001.8752.2502.62s
FB
Depth of Blind Hole for Bottoming Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nominal Lenqth = 3 DIA
.8081.0581.3081.5581.808
.700
.9501.2001.4501.700
.895t,1761.457t.7382,O79
.7841.06s1.3467.6271.908
.9891.3011.6147.9262.239
.8471.160!.4721.785) nq7
1.1501.5251.9002,2752 6qO
1.0001.3751.7502.125? qon
H
Min Full Thread WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANnminallannth=1DTA
.580
.8301.0801.3301 qRO
.550
.8001.0501.3001.550
.550
.9301.2101.4901 77n
.620
.9001.1801.4601 74/.|
.7201.0301.3401.6501.970
.680
.9901.3107.6201.930
.8501.2301.6001.9802.350
.8101.1901.5601.9402.310
PD, l4ax, Class 2BPD, f4ax, Class 38PD Min ala<spc 2R & 3R
.5554
.5537q4qq
.5371
.5357
.5325
.6225
.620861 67
.6035
.60205qR6
.5903
.6885
.6841
.6661
.66/'6
.6611
.82t6
.8196
.8149
796179457906
Minor Dia, l4ax, Class 28Minor Dia, lYax, Class 38Minnr l..)ia Min Clac<ps rB & ?R
.5335
.5273
.5165
,522351865108
.5986
.5918sRo6
.54/2
.5826\74q
.6641
.6564
.6447
.tri97,b+5 t.5370
792678387716
777677207635
Major Dia, Max, Class 28lYajor Dia, lYax, Class 38Maior Dia. Min. Classes 2B & 3B
.6165
.6148
.5999
576857545650
.6887
.6870ATNA
.6476
.54616147
.7625
.7607
.743t
.7102
.7087
.6972
.9010
.8990
.8799
.8457
.8441
.8312
M
Countersink, 120o Included AngleMaximum 620
ss0.s90.s60
.690
.660.660.530
.760
.730.720.690
.900R70
.850R)i
THREAD PROJECT]ON
l
Min, Tang Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenoth=3DIA
.692
.942t.L921".442
7.692
.625
.8751.1251.3751.625
.7701.0521.3337.6t41.896
.701
.9837.2641.5451.827
.8521.165t.477t.7892.t02
.7647.0771.3891.7012.0t4
1.0001.3751.7502.1252.500
.9051.2811.6562.031) 4n.6
K
Max, Tang Not Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenqth=3DIA
.46t
.7tL
.961t.2t11 461
.47s
.725
.975L.2251 47\
.527
.8021.0831.3651 64Fl
.535
.8161.0977,3791 660
.580
.8921.205t.5171 R?n
.597
.9101.2221.5351.847
.7001.0751.4501.8252.200
.7t91.0947.4691.8442.2L9
t1
z<.odU:LozoF
o
uo
3-"io6<Zz>u;79rPe>l^
VOH
<i<
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?,i
=z<=<o<tzolE;o>-dut-Ld
ffi@coPYRIGHT2o,,I:lI3H,:-l:x":.,,^l"::,,^I.l,}:3.l..?*,n,,.REsERvEDffi
USE OF OR REUANCE UPON THIS DOCUMENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUAUFY SUPPUERS OR CERTIFYCONFORMANCE OF TTEMS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS. AIA MAKES NO REPRESENTANON OR CLAIM RESPEfiNG (1) THE SUIIABILITY OF
o
EdoL
TABLE IV _
/a/ INACTIVE FOR NEW DESIGN AFTER 3 MARCH 1969. NO SUPERSEDING STANDARD.
@ corurer-rrElY REVTsED
1.6252.0372.438
Inset Nominal Lenqth, 1 DIAInsert Nominal Length, 1.5 DIAInsert Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIA
ASSEMBLED INSERT
Min Length of Insert WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
PD, Max, Class 28PD, Max, Class 38
1.01581.01391.0084
Minor Dia, Max, Class 28Minor Dia, Max. Class 38
TAPPED HOLE
Depth of Blind Hole for Plug Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIA
of Blind Hole for Bottoming TapsMin When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DiAlvlin When Nominal Lenqth = 3 DIA
Min Full Thread WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
t.Lz3tL.LZL2t.t767
lvlinor Dia, N4ax, Class 28I,linor Dia, I\4ax, Class 38
Major Dia, Max, Class 381.70941.1075
1.18931,T874f.i708
THREAD PROJECTION
Min, Tang Removed, When InseftNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
Max, Tang Not Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
NASM33537
NATIONAL AEROSPACE STAN DARD
USE OF OR RELIANCE UPON THIS DOCUMENT OR ANY NANONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY
CONFORMANCE OF ITEI4S PRODUCED UNDER NATIONAL AEROSPACE STANDARDS, AlA MAKES NO REPRESENTANON OR CLAIN4 RESPECTING (1) THE SUITABILITY OF
z<.UduELozoF
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u..l 6
!0>i.io6<Zz>uYz?:e4=i.ed61<H<
FU<>J<U6EUFI9F6ddos6=
9,==$xoodzd<<=AFZil< iiltsLo:{FJzo6-o>U-FT:ZY,<EJU{u@>:oii
U:=<
=z<B<o4lzduo;o>zduFdd
oN
:dL
O COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC. ALL RIGHTS RESERVED
@ corver-rrElY REVTsED
TABLE IV - DIMEN CONTINUEDNominal Insert Size 25 1.1875 L.2s 1.3125 1 75
Threads Per Inch 7 72 l2 7 t2 t2 6 t2
L"
Insert Nominal Length, 1 DIAInsert Nominal Length, 1.5 DIAInsert Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIAInsert Nominal Lenqth, 3 DIA
1.1251.5882.2s02.8723.375
1.1251.6882.2502.8L23.375
1.1881.7812.3752.9693.562
1.2501.8752.5003.r253 7qn
1.2s01.8752.5003.1251 7Sn
t.3t21.9692.62s3.281? q?A
1.3752.0622.7503.4384.125
7.3752.0522.7503.4384 l)q
ASSEMBLED INSERT
L
Min Length of Insert WhenNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenqth=3DIA
1.0181.5802.1432.705? 76R
1.0621.6252.1882.750? a1)
1.1251.7192.3t22.906? 500
1.1431.7682.3933.0183.543
1.1881.8122.4383.0623 6RR
1.2501.9062.5623.2L9? R7q
1.2501.9382.62s3.3124.000
t.3t22.0002.5883.3754 n6)
D2
PD, Max, Class 2BPD, Max, Class 3BPD, Min, Classes 2B & 3B
1.04161.039310",))
.0787
.0768nTnq
140913901aa4
1.1668r.16441.7572
1.20391.20191 lqqq
1.2659t.26401 )\R4
.2771
.2745)667
1.32911.3270I ?rna
D1
Minor Dia, lYax, Class 28Minor Dia, [4ax, Class 3B
Minor Dia, [4in, Classes 28 & 38
.998
.987s
.9700
.053
.0448
.0350
.115
.1073
.o970
7.t231.11251 0qqn
1.1781.16981 16n0
t.24t)t.23231 )))n
aaE
.2146
.1950
1.303t.29481
'R(n
TAPPED HOLE
FP
Depth of Blind Hole for Plug Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nominal Lenoth = 3 DIA
1.9822.5453.t073.6704 )1)
1.6252.1882.7503.3123 R75
1.6881.2812.8753.4694 06)
2.1072.7323.3573.9824.607
1.7502.3753.0003.62s4.250
1.8122.4693.1253.7814.438
2.3753.0623.7504.4385 1?5
1.8752.5523.2503.9384 A)\
FB
Depth of Blind Hole for Bottoming Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DIAMin When Nominal Length = 2.5 DIAMin When Nominal Lenqth = 3 DIA
1.6962.2592.82t3.3843.946
1.4582.02L2.5833.7463.708
7.5272.7752.7083.3023.896
1.8212.4463.0713.6964'l)1
1.583?.2082.8333.4584.083
t.6462.3022.9583.6154.277
2.0422.7293.4774.7044.792
1.7082,3963.0833.7714.458
H
Min Full Thread WhenNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenqth=3DIA
t.2701.8302.3902.960? q?n
1.210t.7702.3302.900? 460
1-.2701.8702.4603.050? 6qo
1.3902.0202.6403.2703 RgO
1.3301.9602.5803.2101 R?O
1.4002.0502.7t03.3604 i)o
1.5402.2302.9203.6004 )qn
1.4502.1502.8313.520
PD, Max, Class 28PD. Max, Class 38PD. Min, Classes 2B & 38
t.2162t,22391 )17R
18601841t792
.2482
.2463
.2417
1.35 141.34901.3428
1.31121.30921 1i4)
t.3732t.37t31.3667
.4926
.49004Ra)
t.4364L.4343
Minor Dia, Max, Class 2B
14inor Dia, Max, Class 3B
I,4inor Dia, l"'lin, Classes 28 & 38
1834t7301559
1b 1t153 1
1 471
1.22361.2156I 2056
1.30841.29801 7R0q
1.2861t.278t't 26R1
1.34861.34061 ??n6
.4476
.4310
.4110
1.41111.40311 ?q?1
lvlajor Dia, Max, Class 28N4ajor Dia, Max, Class 38Maior Dia. Min. Classes 28 & 3B
.3396111a
?1 n6
.2522
.25037???
.3t44
.3125TqsR
t.4648t.46241.4356
7.37741.37541 ?qR?
.4394
.43754)OR
.6248
.6223Eq1 q
1.50261,5005I 4R??
M
Countersink, 120' Included Anglelvlaximumlvlinimum
1.3201
'qn
1.2501.220
1.3151 ?Aq
t.4401.410
1.3801 ?50
t.4401 410.
1.s901.560
1.5001 470.
THREADPROJECIION
l
Min, Tang Removed, When InsertNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLength=3DIA
1.4822.0452.6073.r693.732
1.3331.8962.4583.0203.583
1.3961.9892.5833.t77a a1l
r.6077.2322.8573.4824.L07
1.4582.0832.7083.3333.958
1.5202.t772.8333.4894.t46
7.7922.4793.t673.8554.54?
1.5832.2702.9583.U64.333
K
Ivlax, Tang Not Removed, When InsertNominalLength=lDIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIANominalLenoth=3DIA
1.0541.6162.t792.7473,304
1.0837.6462.2082.7773.333
t.1461.7402.3332.9273.521
1.t791.8042.4293.0s43.679
1.2081.8332.4583.0833.708
7.2777.9272.5833.2393.896
1.2927.9792.6673.3544.042
1.3332.02r2.7083.3964.083
NATIONAL AEROSPACE STAN DARDG) COPYRIGHT 2013 AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA, INC, ALL RIGHTS RESERVED
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USE OF OR RELIANCE UPON THIS DOCUN,IENT OR ANY NATIONAL AEROSPACE STANDARD IS ENTIRELY VOLUNTARY. AIA DOES NOT QUALIFY SUPPLIERS OR CERTIFY
CONFORMANCE OF ITEIVIS PRODUCED UNDER NATIONAL AEROSPACE STANDARDS, AIA I4AKES NO REPRESENTATION OR CLAIM RESPECTING (1) THE SUITABILITY OF
TABLE IV - DIMENSIONS (CONTINUED
@ covrer-rrElY REVISED
Insert Nominal Length, 1 DIAInseft Nominal Length, 1.5 DIAInsed Nominal Length, 2 DIAInsert Nominal Length, 2.5 DIAInseft Nominal Lenqth, 3 DIAMin Length of Inset When
Nominal Length=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
ASSEMBLED ]NSERT PD, Max, Class 28PD, Max, Class 38
2.20382.20182.19592.1782.16982.1600
Minor Dia, Max, Class 3B
t.4281.41981.4100
2.4287.47982.4700
Depth of Blind Hole for Plug Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DIAMin When Nominal Length = 2 DiAMin When Nominal Length = 2.5 DiAMin When Nominal Lenqth = 3
TAPPED HOLE
Depth of Blind Hole for Bottoming Taps,Min When Nominal Length = 1 DIAMin When Nominal Length = 1.5 DiAMin When Nominal Length = 2 DIAlvlin When Nominal Length = 2.5 DIAMin When Nominal Lenqth = 3 DIA
Min Full Thread WhenNominalLength=1DIANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
t.67771.6151
2.31112.3091
PD, Max, Class 28PD, Max, Class 38PD, Min, Classes 28 & 38
1.91111.9031
t.bb l.I1.6s31
It4inor Dia, Max, Class 28lvlinor Dia, Max, Class 38lvlinor Dia, I\4in, Classes 28 & 38
i.53611.5281
Major Dia, Max, Class 28Major Dia, Max, Class 38
Min, Tang Removed, When InsertNominalLength=lDiANominal Length = 1.5 DIANominalLength=2DIANominal Length = 2.5 DIA
THREAD PRO]ECTION
Max, Tang Not Removed, When InsertNominal Length=lDIANominal Length = 1.5 DIANominal Length=2DIANominal Length = 2.5 DIA
NASM33537SHEET 13