| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.504 INCHES MINIMUM AND 0.513 INCHES MAXIMUM SINGLE END |
| ANGLE BETWEEN LUGS | 89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM |
| LUG LENGTH | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| LUG WIDTH | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 1.296 INCHES MINIMUM AND 1.328 INCHES MAXIMUM |
| OVERALL LENGTH | 1.172 INCHES MINIMUM AND 1.204 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758,CONDITION D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| OPENING DIAMETER | 1.057 INCHES MINIMUM AND 1.067 INCHES MAXIMUM |
| STYLE DESIGNATOR | LUG |