| MRC |
Requirement Statement |
Characteristics |
| CRSQ |
COUNTERSINK ANGLE |
99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.925 INCHES MINIMUM AND 0.945 INCHES MAXIMUM |
| AASL |
HEAD DIAMETER |
0.518 INCHES MINIMUM AND 0.528 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OVERALL OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATT |
MATERIAL |
STEEL COMP 8740 OVERALL OR STEEL COMP 4140 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
160000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.375 INCHES |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| FEAT |
SPECIAL FEATURES |
3 SPLINES 0.040 IN. WIDE BY 0.029 IN. DEEP 120 DEGREES APART, 0.112 IN.DIA HOLE FOR PLUG |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| ASDB |
WIDTH ACROSS FLATS |
0.312 INCHES NOMINAL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416, TYPE 2, CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
| AAJD |
THREAD CLASS |
3A |
| AASA |
THREAD LENGTH |
0.645 INCHES NOMINAL |
| CMLP |
THREAD QUANTITY PER INCH |
24 |
