| ATTACHMENT METHOD | MOUNTING HOLE |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| END NOMINAL DIAMETER | 0.314 INCHES SECOND END |
| END NOMINAL LENGTH | 0.032 INCHES SECOND END |
| FACE NOMINAL WIDTH | 0.141 INCHES |
| FIRST STEP NOMINAL DIAMETER | 0.500 INCHES SECOND END |
| FIRST STEP NOMINAL LENGTH | 0.311 INCHES SECOND END |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | 1 STEP SECOND END |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 6,TYPE C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 416 OVERALL |
| PITCH DIAMETER | 0.8750 INCHES NOMINAL |
| PRESSURE ANGLE | 20.0000 DEGREES |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN AND 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.112 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.343 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 0.9050 INCHES |
| NOMINAL OVERALL LENGTH | 0.564 INCHES |
| STYLE DESIGNATOR | PERIPHERAL FACE, BACK HUB PROTRUDING |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEETH QUANTITY | 42 |