| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 3.303 INCHES BOTH ENDS |
| FACE NOMINAL WIDTH | 1.281 INCHES |
| HARDNESS RATING | 59.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| HELIX ANGLE | 26.1666 DEGREES |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| HUB NOMINAL DIAMETER | 3.938 INCHES FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 8620H OR STEEL COMP 8720H OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.156 INCHES TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE TYPE AND QUANTITY | 3 PLAIN TRANSVERSELY THROUGH FACE |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.890 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 4.728 INCHES |
| PITCH DIAMETER | 4.2714 INCHES NOMINAL |
| PRESSURE ANGLE | 17.5000 DEGREES |
| SPECIAL FEATURES | COUNTERORE 1ST END,DIA 3.344 IN. NOM BY 0.483 IN. NOM DEEP |
| SPLINE PITCH DIAMETER | 3.1429 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 22 BOTH ENDS |
| STYLE DESIGNATOR | PROTRUDING HUB |
| TEETH QUANTITY | 23 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | LEFT |