| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
QQ-Z-325 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| CQFM |
HARDNESS RATING |
23.0 ROCKWELL C MINIMUM OVERALL AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| CRTL |
CRITICALITY CODE JUSTIFICATION |
ZZZY |
| CBBL |
FEATURES PROVIDED |
FINISHED HEAD |
| AATB |
WIDTH BETWEEN FLATS |
0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| SFTT |
SURFACE TREATMENT |
ZINC OVERALL AND CHROMATE OVERALL |
| AHYM |
NOMINAL THREAD DIAMETER |
0.250 INCHES |
| TEST |
TEST DATA DOCUMENT |
81349-MIL-P-23199 SPECIFICATION |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| MATT |
MATERIAL |
STEEL OVERALL |
| AASU |
HEAD HEIGHT |
0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM |
| SPCL |
SPECIAL TEST FEATURES |
SPECIAL QUALITY CONTROL TESTING |
| AASA |
THREAD LENGTH |
0.219 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| ZZZY |
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS |
AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS |
| THSD |
THREAD SERIES DESIGNATOR |
UNC |
| AAJD |
THREAD CLASS |
2A |
| AASK |
HEAD STYLE |
HEXAGON |
| AASB |
FASTENER LENGTH |
0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| CMLP |
THREAD QUANTITY PER INCH |
20 |