| MRC |
Requirement Statement |
Characteristics |
| CRSQ |
COUNTERSINK ANGLE |
80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| AASB |
FASTENER LENGTH |
0.250 INCHES NOMINAL |
| AASL |
HEAD DIAMETER |
0.308 INCHES MINIMUM AND 0.332 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
FLAT COUNTERSUNK |
| MATT |
MATERIAL |
STEEL COMP 1016 OVERALL OR STEEL COMP 1018 OVERALL OR STEEL COMP 1019 OVERALL OR STEEL COMP 1021 OVERALL OR STEEL COMP 1022 OVERALL OR STEEL COMP 1524 OVERALL |
| ZZZT |
NONDEFINITIVE SPEC/STD DATA |
B TYPE |
| CTYF |
NONMACHINE NOMINAL THREAD DIAMETER |
0.164 INCHES |
| CRGF |
NONMACHINE THREAD STYLE |
DOG TYPE (TYPE B OR C) |
| ABQZ |
INTERNAL DRIVE STYLE |
SLOT |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL AND CHROMATE OVERALL |
