| MATERIAL | STEEL OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| STYLE DESIGNATOR | INTERNAL-INTERNAL |
| OVERALL LENGTH | 2.125 INCHES MINIMUM |
| WRENCHING END OUTSIDE DIAMETER | 1.000 INCHES MAXIMUM |
| DRIVE END OUTSIDE DIAMETER | 1.000 INCHES MAXIMUM |
| WRENCHING END OPENING DEPTH | 0.437 INCHES MINIMUM |
| WRENCHING SURFACE SIZE | 0.750 INCHES NOMINAL SINGLE END |
| WRENCHING SURFACE SHAPE | 12 POINT SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.375 INCHES NOMINAL SINGLE END |
| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| FEATURES PROVIDED | MANUAL TOOL |
| SPECIAL FEATURES | 5/32 IN. BY 1-1/2 IN. SLOT CUTOUT IN SOCKET WALL |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND |
| 2 CLASS AND |
| B STYLE |
| DEPARTURE FROM CITED DESIGNATOR | AS MOD BY SPECIAL FEATURE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | GGG-W-641 |