| AASU |
HEAD HEIGHT |
0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
CHROMIUM THREADS |
| ZZZY |
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS |
AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINAION |
| CRTL |
CRITICALITY CODE JUSTIFICATION |
ZZZY |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-C-320 CL 2B FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| AASL |
HEAD DIAMETER |
0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM |
| ASDB |
WIDTH ACROSS FLATS |
0.375 INCHES NOMINAL |
| AASB |
FASTENER LENGTH |
1.690 INCHES MINIMUM AND 1.750 INCHES MAXIMUM |
| TEST |
TEST DATA DOCUMENT |
81349-MIL-P-23199 SPECIFICATION |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MDCL |
MATERIAL DOCUMENT AND CLASSIFICATION |
ASTM A564 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| AASK |
HEAD STYLE |
FLAT CHAMFER |
| CQFM |
HARDNESS RATING |
35.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| CMLP |
THREAD QUANTITY PER INCH |
14 |
| AASA |
THREAD LENGTH |
1.250 INCHES MINIMUM |
| SPCL |
SPECIAL TEST FEATURES |
SPECIAL QUALITY CONTROL TESTING |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| ABQZ |
INTERNAL DRIVE STYLE |
HEXAGON |
| AHYM |
NOMINAL THREAD DIAMETER |
0.438 INCHES |