| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 0.189 INCHES BOTH ENDS |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| FACE NOMINAL WIDTH | 1.250 INCHES |
| HARDNESS RATING | 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL |
| HUB NOMINAL DIAMETER | 1.120 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| KEYWAY NOMINAL WIDTH | 0.189 INCHES BOTH ENDS |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626,COMP 4140 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| PITCH DIAMETER | 1.5000 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.250 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 28 TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.466 INCHES BOTH ENDS |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.750 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 1.750 INCHES |
| PRESSURE ANGLE | 14.5000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| TEETH QUANTITY | 12 |
| TOOTH FORM | STANDARD |