| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
CVA5-2,FSCM 80378 MFR REF 1ST TREATMENT RESPONSE HEAD |
| AASU |
HEAD HEIGHT |
0.220 INCHES NOMINAL |
| TEST |
TEST DATA DOCUMENT |
81349-MIL-I-6870 SPECIFICATION |
| MATT |
MATERIAL |
STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP E4340 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 4037 OVERALL |
| AAXC |
CONCENTRIC HOLE DIAMETER |
0.375 INCHES NOMINAL |
| STDC |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION |
CVA5-2,FSCM 80378 MFR REF 2ND TREATMENT RESPONSE THREADS |
| AAJD |
THREAD CLASS |
3A |
| SFTT |
SURFACE TREATMENT |
CADMIUM HEAD |
| AHYM |
NOMINAL THREAD DIAMETER |
0.875 INCHES |
| AAWB |
SHANK UNTHREADED HOLE DIAMETER |
0.141 INCHES NOMINAL FIRST HOLE |
| AAJF |
THREAD DIRECTION |
RIGHT-HAND |
| AASA |
THREAD LENGTH |
0.643 INCHES MAXIMUM |
| AASB |
FASTENER LENGTH |
3.437 INCHES MINIMUM AND 3.484 INCHES MAXIMUM |
| CQFM |
HARDNESS RATING |
36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| SFTT |
SURFACE TREATMENT |
CADMIUM THREADS |
| CRZS |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER |
3.234 INCHES MINIMUM FIRST HOLE AND 3.266 INCHES MAXIMUM FIRST HOLE |
| CMLP |
THREAD QUANTITY PER INCH |
14 |
| THSD |
THREAD SERIES DESIGNATOR |
UNF |
| AASK |
HEAD STYLE |
HEXAGON |
| AATB |
WIDTH BETWEEN FLATS |
1.240 INCHES MINIMUM AND 1.253 INCHES MAXIMUM |
| STYL |
STYLE DESIGNATOR |
CONCENTRIC HOLE UNTHREADED |