| DRIVE SURFACE SIZE | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM SINGLE END |
| DRIVE END SHAPE | HEXAGON SINGLE END EXTERNAL |
| ANGLE BETWEEN LUGS | 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM |
| LUG LENGTH | 0.340 INCHES MINIMUM AND 0.400 INCHES MAXIMUM |
| LUG WIDTH | 0.330 INCHES MINIMUM AND 0.350 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 3.250 INCHES MINIMUM AND 3.260 INCHES MAXIMUM |
| OVERALL LENGTH | 1.155 INCHES MINIMUM AND 1.355 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD 1ST MATERIAL RESPONSE AND MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-18728,COND N MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1015 AND STEEL COMP 4130 AND STEEL OVERALL |
| OPENING DIAMETER | 3.000 INCHES MINIMUM AND 3.010 INCHES MAXIMUM |
| STYLE DESIGNATOR | LUG |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | H+4-11,TYPE 1,CLASS 1,FSCM 02731 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |