| MRC |
Requirement Statement |
Characteristics |
| AAVR |
DISTANCE FROM LARGEST DIAMETER OF BEARING SURFACE OF HEAD TO RIBS |
1.250 INCHES NOMINAL |
| AASB |
FASTENER LENGTH |
4.190 INCHES NOMINAL |
| CQFM |
HARDNESS RATING |
32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| AASU |
HEAD HEIGHT |
0.320 INCHES NOMINAL |
| AASK |
HEAD STYLE |
HEXAGON |
| MATT |
MATERIAL |
STEEL COMP 4032 OVERALL OR STEEL COMP 5140 OVERALL OR STEEL COMP 8637 OVERALL OR STEEL COMP 8740 OVERALL |
| CQBC |
MINIMUM TENSILE STRENGTH |
120000 POUNDS PER SQUARE INCH |
| AHYM |
NOMINAL THREAD DIAMETER |
0.437 INCHES |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
AISI ASSN STD ALL MATERIAL RESPONSES OVERALL OR SAE ASSN STD ALL MATERIAL RESPONSES OVERALL OR 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| AAVQ |
RIB LENGTH |
0.250 INCHES NOMINAL |
| AAVP |
RIB MAJOR DIAMETER |
0.635 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| AATN |
SHOULDER DIAMETER |
0.618 INCHES MINIMUM FIRST SHOULDER AND 0.624 INCHES MAXIMUM FIRST SHOULDER |
| AATX |
SHOULDER LENGTH |
3.490 INCHES NOMINAL FIRST SHOULDER |
| CWYB |
SHOULDER SHAPE |
RIBBED FIRST SHOULDER |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AATB |
WIDTH BETWEEN FLATS |
1.120 INCHES NOMINAL |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL OR ZINC OVERALL |
| AAJD |
THREAD CLASS |
2A |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.590 INCHES MINIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |
