| MRC |
Requirement Statement |
Characteristics |
| AATD |
EXTENDED WASHER THICKNESS |
0.059 INCHES MINIMUM AND 0.079 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| AATB |
WIDTH BETWEEN FLATS |
0.306 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| CQBC |
MINIMUM TENSILE STRENGTH |
180000 POUNDS PER SQUARE INCH |
| AAUR |
GRIP DIAMETER |
0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
2.475 INCHES MINIMUM AND 2.495 INCHES MAXIMUM |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
NAS672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| AASA |
THREAD LENGTH |
0.460 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| AASU |
HEAD HEIGHT |
0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM |
| THSD |
THREAD SERIES DESIGNATOR |
UNJF |
| AAJD |
THREAD CLASS |
3A |
| ZZZK |
SPECIFICATION/STANDARD DATA |
80205-NAS624 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| CMLP |
THREAD QUANTITY PER INCH |
28 |
| SFTT |
SURFACE TREATMENT |
CADMIUM OVERALL |
| AAUB |
HOLE DIAMETER |
0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| AATC |
EXTENDED WASHER DIAMETER |
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| MATT |
MATERIAL |
STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| ASXK |
HOLE QUANTITY |
4 |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| CRHC |
HOLE CONFIGURATION STYLE |
DOUBLE HEXAGON LONGITUDINAL HOLE |
| AASK |
HEAD STYLE |
DOUBLE HEXAGON W/HOLE |
| BQDM |
HOLE TYPE |
DRILLED |
| ANEE |
GRIP LENGTH |
1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM |
