| DRIVE END SHAPE | SQUARE SINGLE END INTERNAL |
| DRIVE SURFACE SIZE | 0.750 INCHES NOMINAL SINGLE END |
| ANGLE BETWEEN LUGS | 72.0 DEGREES NOMINAL |
| LUG LENGTH | 0.250 INCHES NOMINAL |
| LUG WIDTH | 0.225 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 3.062 INCHES NOMINAL |
| OVERALL LENGTH | 2.125 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 1330 OR STEEL COMP 8630 OVERALL |
| OPENING DIAMETER | 2.640 INCHES MINIMUM AND 2.645 INCHES MAXIMUM |
| STYLE DESIGNATOR | LUG |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | LACQUER AND PHOSPHATE OVERALL |