| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 8.375 INCHES AXIALLY THROUGH HUB, FIRST END |
| BORE NOMINAL DIAMETER | 3.800 INCHES BOTH ENDS |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 3.125 INCHES SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 3.937 INCHES SECOND END |
| FACE NOMINAL WIDTH | 3.500 INCHES |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 5.000 INCHES FIRST END |
| HUB NOMINAL DIAMETER | 5.000 INCHES SECOND END |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.906 INCHES AXIALLY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 6 PLAIN TRANSVERSELY THROUGH HUB, SECOND END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.100 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.125 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 23.152 INCHES |
| PITCH DIAMETER | 22.6667 INCHES NOMINAL |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPLINE PITCH DIAMETER | 3.7000 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 37 BOTH ENDS |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| TEETH QUANTITY | 68 |
| TOOTH FORM | STANDARD |