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High Strength NAS1805 Series

NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE HEXAGON, CRES, 180 KSI, 450° F AND 800° F

 

DASH
NUMBER
T
NOMINAL
THREAD SIZE
UNJF-3B
NOTE 1
Ø A
MAX
Ø B
MIN
Ø C
MIN
NOTE
3
H
MAX
ID
MAX
ID
MIN
J
MIN
Ø K
MAX
NOTE
3
M
REF
2
W
NOTE
3 MAX
W
NOTE
3 MIN
3 .1900-32 .339 .299 .277 .190 .220 .190 .065 .262 .013 .251 .243
4 .2500-28 .434 .394 .347 .250 .280 .250 .082 .327 .017 .313 .243
5 .3125-24 .532 .492 .418 .312 .342 .312 .120 .392 .021 .376 .367
6 .3750-24 .631 .591 .490 .375 .405 .375 .129 .458 .026 .439 .430
7 .4375-20 .729 .689 .631 .438 .473 .438 .156 .588 .034 .564 .553
8 .5000-20 .828 .788 .703 .500 .535 .500 .190 .654 .038 .627 .616
9 .5625-18 .926 .886 .775 .562 .597 .562 .230 .720 .042 .690 .679
10 .6250-18 1.024 .984 .846 .625 .660 .625 .250 .784 .047 .752 .741
12 .7500-16 1.221 1.181 1.059 .750 .785 .750 .310 .980 .060 .940 .928
14 .8750-14 1.418 1.378 1.200 .875 .910 .875 .350 1.110 .068 1.064 1.052
16 1.0000-12 1.625 1.575 1.344 1.000 1.035 1.000 .400 1.241 .077 1.190 1.177
18 1.1250-12 1.822 1.772 1.557 1.125 1.160 1.125 .450 1.436 .090 1.377 1.364
20 1.2500-12 2.019 1.969 1.699 1.250 1.285 1.250 .500 1.565 .098 1.502 1.489
22 1.3750-12 2.216 2.166 1.842 1.375 1.410 1.375 .550 1.695 .107 1.627 1.614
24 1.5000-12 2.412 2.362 1.986 1.500 1.535 1.500 .600 1.825 .117 1.752 1.739
28 1.7500-12 2.820 2.770 2.332 1.750 1.785 1.750 .750 2.150 .138 2.064 2.050
32 2.0000-12 3.200 3.150 2.687 2.000 2.040 2.000 .900 2.474 .155 2.377 2.363

 

DASH
NUMBER
V
FEF
TOLERANCE X MAXIMUM
WEIGHT
LBS/100
3 .015 .006 .21
4 .020 .006 .42
5 .035 .006 .71
6 .056 .010 1.27
7 .069 .010 2.14
8 .074 .010 3.04
9 .079 .010 4.13
10 .084 .010 5.41
12 .094 .010 10.20
14 .109 .015 15.20
16 .122 .015 21.90
18 .150 .015 32.30
20 .170 .015 42.30
22 .220 .015 55.30
24 .260 .015 70.40
28 .300 .015 .113.00
32 .350 .015 169.00

 

MATERIAL:
A286 (UNS S66286) CRES PER AMS 5737, NICKEL ALLOY 718 (UNS N07718) PER AMS 5662 OPTIONAL FOR NUT SIZE 7500-16 AND AARGER

FINISH:
NO CODE LETTER – A286, PASSIVATE PER QQ-P-35, TYPE II, VI OR VIII; 718 PASSIVATE
AND F QQ-P-35; TYPE OPTIONAL
CODE LETTER L – CADMIUM PLATE PER QQ-P-416, CLASS 2. TYPE OF PLATING OPTIONAL IF NUTS MEET SALT SPRAY REQUIREMENTS OF QQ-P-416 TYPE II. EMBRITTLEMENT TEST DOES NOT APPLY.
CODE LETTER N – CADMIUM PLATE PER QQ-P-416, TYPE II, CLASSI. EMBRITTLEMENT TEST DOES NOT APPLY.
CODE LETTER P – SILVER PLATE PER AMS 2410, .0002 MINIMUM THICKNESS ON SURFACES WHICH CAN BE TOUCHED WITH A .75 DIAMETER BALL THREADS SHALL SHOW COMPLETE COVERAGE BUT THICKNESS REQUIREMENT IS WAIVED.

LUBRICATION:
NO CODE LETTER – SOLID FILM LUBRICANT PER MIL-L-46010, TYPE I AND HYDRAULIC FLUID RESISTANCE WHEN TESTED PER ASTM D 2510 USING SAE AS1241 PHOSPHATE ESTER HYDRAULIC FLUID.

CODE LETTER F – SOLID FILM LUBRICANT PER MIL-L-46010, TYPE I. LUBRICANT SHALL BE SPACE COMPATIBLE, KAL-GARD “FA” ONLY.
CODE LETTER L – SOLID FILM LUBRICANT MEETING THE REQUIREMENTS OF NAS3350 AND HYDRAULIC FLUID RESISTANCE WHEN TESTED PER ASTM D 2410 USING SAE AS1241 PHOSPHATE ESTER HYDRAULIC FLUID.
CODE LETTER N – CETYL ALCOHOL (NON-SOLID FILM LUBRICANT) PER MIL-L-87132, TYPE I, GRADE A.
CODE LETTER P – NO LUBRICANT.

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