| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD 1ST MATERIAL RESPONSE AND FS201,FSCM 11599 MFR REF 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 6150 AND STEEL OVERALL |
| WRENCHING SURFACE SHAPE | 12 POINT SECOND END INTERNAL |
| WRENCHING SURFACE SHAPE | SQUARE FIRST END INTERNAL |
| WRENCHING SURFACE SIZE | 0.375 INCHES NOMINAL FIRST END |
| WRENCHING SURFACE SIZE | 0.438 INCHES NOMINAL SECOND END |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2485 ASSN STD 1ST TREATMENT RESPONSE AND AMS 2406 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE AND CHROMIUM OVERALL |