| BODY STYLE | WEBBED, WITH LIGHTENING HOLES |
| BORE NOMINAL DIAMETER | 0.650 INCHES BOTH ENDS |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE STYLE | W/COUNTERBORE SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.985 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 0.750 INCHES COUNTER BORE, SECOND END |
| END NOMINAL DIAMETER | 0.875 INCHES FIRST END |
| END NOMINAL DIAMETER | 0.984 INCHES SECOND END |
| END NOMINAL LENGTH | 0.500 INCHES SECOND END |
| END NOMINAL LENGTH | 0.600 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.310 INCHES |
| FIRST STEP NOMINAL DIAMETER | 0.984 INCHES FIRST END |
| FIRST STEP NOMINAL DIAMETER | 1.130 INCHES SECOND END |
| FIRST STEP NOMINAL LENGTH | 0.083 INCHES SECOND END |
| FIRST STEP NOMINAL LENGTH | 0.552 INCHES FIRST END |
| HARDNESS RATING | 52.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | 1 STEP BOTH ENDS |
| MATERIAL | STEEL OVERALL |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.583 INCHES SECOND END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.152 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 3.745 INCHES |
| PITCH DIAMETER | 3.5355 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPLINE PITCH DIAMETER | 0.6000 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 12 BOTH ENDS |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| TEETH QUANTITY | 35 |
| TOOTH FORM | STANDARD |