| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 3.125 INCHES AXIALLY THROUGH BODY, FIRST END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 1.342 INCHES BOTH ENDS |
| COUNTERBORE NOMINAL DIAMETER | 1.468 INCHES FIRST END |
| COUNTERBORE NOMINAL DEPTH | 0.094 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.896 INCHES |
| HARDNESS RATING | 60.0 ROCKWELL C NOMINAL OVERALL |
| HUB NOMINAL DIAMETER | 1.656 INCHES SECOND END |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 4.500 INCHES FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 8620H OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.250 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 3 PLAIN TRANSVERSELY THROUGH FACE |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.521 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.333 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 7.171 INCHES |
| PITCH DIAMETER | 6.8333 INCHES NOMINAL |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SPLINE PITCH DIAMETER | 1.2500 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 20 BOTH ENDS |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| TEETH QUANTITY | 41 |
| TOOTH FORM | STANDARD |