| MRC |
Requirement Statement |
Characteristics |
| AATC |
EXTENDED WASHER DIAMETER |
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| AATD |
EXTENDED WASHER THICKNESS |
0.126 INCHES NOMINAL |
| AASB |
FASTENER LENGTH |
0.745 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.250 INCHES NOMINAL |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON EXTENDED WASHER |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL OR MIL-S-8503 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 6150 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
441 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.248 INCHES |
| CXCY |
PART NAME ASSIGNED BY CONTROLLING AGENCY |
BOLT, EXTERNAL WRENCHING, ALLOY STEEL, 450 DEGREES FAHRENHEIT, 180-200 KSI |
| FEAT |
SPECIAL FEATURES |
HAS FOUR 0.32 TO 0.42 IN. DIAMETER HOLES IN HEX HEAD |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AATB |
WIDTH BETWEEN FLATS |
0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416, TYPE 2, CLASSS 2 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.335 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
