| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BODY RECESS NOMINAL DEPTH | 1.047 INCHES FIRST END |
| BORE NOMINAL DEPTH | 0.090 INCHES FIRST COUNTERBORE, SECOND END |
| BORE NOMINAL DEPTH | 0.937 INCHES SECOND COUNTERBORE, SECOND END |
| BORE NOMINAL DIAMETER | 1.251 INCHES SECOND COUNTERBORE, SECOND END |
| BORE NOMINAL DIAMETER | 1.688 INCHES FIRST COUNTERBORE, SECOND END |
| BORE STYLE | PARTIAL FIRST COUNTERBORE, SECOND END |
| BORE STYLE | PARTIAL SECOND COUNTERBORE, SECOND END |
| BORE STYLE | SERRATED FIRST END |
| FACE NOMINAL WIDTH | 0.250 INCHES |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| HUB NOMINAL DIAMETER | 3.000 INCHES FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.437 INCHES AXIALLY THROUGH BODY, SECOND END |
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN AXIALLY THROUGH BODY, SECOND END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.687 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 4.640 INCHES |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SERRATION PITCH DIAMETER | 0.4583 INCHES NOMINAL FIRST END |
| SERRATION QUANTITY | 22 FIRST END |
| STYLE DESIGNATOR | PROTRUDING HUB, RECESSED BODY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE MANGANESE OVERALL |
| TEETH QUANTITY | 16 |