| MRC |
Requirement Statement |
Characteristics |
| CRSQ |
COUNTERSINK ANGLE |
58.0 DEGREES MINIMUM AND 60.0 DEGREES MAXIMUM |
| AASB |
FASTENER LENGTH |
1.070 INCHES MINIMUM AND 1.090 INCHES MAXIMUM |
| AAUR |
GRIP DIAMETER |
0.1604 INCHES MINIMUM AND 0.1607 INCHES MAXIMUM |
| ANEE |
GRIP LENGTH |
0.542 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
40.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.120 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| AASK |
HEAD STYLE |
HEXAGON COUNTERSUNK |
| MATT |
MATERIAL |
STEEL COMP 630 OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.164 INCHES |
| CXCY |
III PART NAME ASSIGNED BY CONTROLLING AGENCY |
NAVY SPECIAL PROJECT |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| FEAT |
SPECIAL FEATURES |
RELIEF GROOVE UNDER HEAD 0.040 IN. MAX LG BY 0.151 IN. NOM DIA |
| AATB |
WIDTH BETWEEN FLATS |
0.312 INCHES NOMINAL |
| AAJD |
THREAD CLASS |
3A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
32 |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
