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NAS1801 / NAS1802

SCREW, HEX HEAD, CRUCIFORM RECESS, FULL THREAD, A286 CRES, 160 KSI Ftu

 

FIRST
DASH
NO
T
THREAD SIZE
PER AS8879
/2/
A HEX B MIN ØD
/2/ /3/
H ØJ MIN
/12/
ØM +.010
-.000
N MIN R RAD (U) W E PEN
/5/
RECESS
SIZE /5/
04 ,1120-40
UNJC.3A
.189
.181
.207 .112
.094
.060
.049
.156 .032 .015
.005
.031 .116
.103
.071
.055
1
06 .1380-32
UNJC-34
.251
.243
.277 .138
.115
.093
.080
.210 .050 .015
.005
.039 .154
.141
.075
.052
2
08 .1640-32
UNJC-3A
.251
.243
.277 .164
.141
.110
.096
.210 .056 .015
.005
.039 .169
.156
.090
.067
2
3 .1900-32
UNJC-3A
.314
.305
.348 .190
.167
.120
.105
.272 .046 .062 .020
.010
.039 .184
.171
.105
.082
2
4 .2500-28
UNJF-3A
.376
.367
.410 .250
224
.140
.125
.335 .046 .073 .020
.010
.045 .247
.234
.118
.095
3
5 .3125-24
UNJF3A
.439
.429
.480 .312
.282
.171
.156
.398 .070 .102 .020
.010
.052 .317
.304
.148
.126
4
6 .3750-24
UNJF-3A
.502
.492
.552 .375
.345
.203
.188
.460 .070 .131 .025
.015
.052 .342
.329
.173
.151
4

 

MATERIAL: GRES: 4286 (UNS 566286) CONFORMING TO THE CHEMISTRY OF AMS5731, AMS5732, AM55737 OR AMS5B53.

HEAT TREATMENT: DEVELOP BASIC MATERIAL PROPERTIES AS FOLLOWS, WITH CONTROLS PER AMS2759: 160-190 KSI Ftu. PRECIPITATION HARDENING IN ACCORDANCE WITH AMS5B53, ITLI

FINISH: PASSIVATE PER AMS2700, METHOD 1, TypE 2 OR TypE 8, CLASS 4, PASSIVATE PER AMS2700 METHOD 1/ TYPE 8/ CLASS 4 – NO POST TREATMENT, PASSIVATE PER AMSzTOO METHOD 2 . NO POST TREATMENT OR CADMIUM PLATE pER AMS-QQ-P-416, TypE II, CLASS 2.

CODE: FIRST DASH NUMBER INDICATES DIAMETER PER TABLE I, DASH C’_’) FOLLOWING FIRST DASH NUMBER INDICATES UNDRILLED HEAD. LETTER “D” FOLLOWING FIRST DASH NUMBER INDICATES DRILLED HEAD (-3 THRU .6 SIZES ONLY), SECOND DASH NUMBER ]NDICATES LENGTH IN .0625 INCREMENTS, NO LETTER FOLLOWING THE SECOND DASH NUMBER INDICATES PASS]VATED F]NISH PER AMSzTOO METHOD 1, TYPE 2 OR 8, CLASS 4, LETTER “B’ FOLLOWING THE SECOND DASH NUMBER TNDICATES PASSIVATE PER AMS2TOO METHOD 2 – NO POST TREATMENT. LETTER *M” FOLLOWING THE SECOND DASH NUMBER INDICATES PASSIVATE PER AMS2TOO METHOD 1/ TYPE 8, CLASS 4 – NO POST TREATMENT. LETTER”P” FOLLOWING SECOND DASH NUMBER IND]CATES CADMIUM PLATE,

 

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