| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 3.1250 INCHES BOTH ENDS |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| END NOMINAL DIAMETER | 3.6200 INCHES FIRST END |
| END NOMINAL LENGTH | 1.3050 INCHES FIRST END |
| FACE NOMINAL WIDTH | 1.7500 INCHES |
| FIRST STEP NOMINAL DIAMETER | 4.3293 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 1.3800 INCHES FIRST END |
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | 3 STEPS FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| PITCH DIAMETER | 6.8330 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4620 AND STEEL COMP 8620 OVERALL |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 3.0940 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 8.3750 INCHES |
| NOMINAL OVERALL LENGTH | 5.7500 INCHES |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SECOND STEP NOMINAL DIAMETER | 4.8800 INCHES FIRST END |
| SECOND STEP NOMINAL LENGTH | 0.0350 INCHES FIRST END |
| SPLINE PITCH DIAMETER | 3.0000 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 24 BOTH ENDS |
| TEETH QUANTITY | 41 |
| TEETH TYPE | SPUR |
| THIRD STEP NOMINAL DIAMETER | 7.7550 INCHES FIRST END |
| THIRD STEP NOMINAL LENGTH | 0.3740 INCHES FIRST END |
| TOOTH FORM | STANDARD |