| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 7.500 INCHES AXIALLY THROUGH BODY, FIRST END |
| BORE NOMINAL DIAMETER | 3.377 INCHES BOTH ENDS |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.656 INCHES FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 3.500 INCHES FIRST END |
| END NOMINAL DIAMETER | 4.331 INCHES FIRST END |
| END NOMINAL LENGTH | 1.875 INCHES FIRST END |
| FACE NOMINAL WIDTH | 2.875 INCHES |
| FIRST STEP NOMINAL DIAMETER | 5.188 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.246 INCHES FIRST END |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| HUB STYLE DESIGNATOR | PLAIN SECOND END |
| HUB NOMINAL DIAMETER | 4.450 INCHES SECOND END |
| MOUNTING HOLE NOMINAL DIAMETER | 1.125 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN AXIALLY THROUGH BODY, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.629 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.504 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 13.120 INCHES |
| NOMINAL OVERALL LENGTH | 4.504 INCHES |
| PITCH DIAMETER | 12.7500 INCHES NOMINAL |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SPLINE PITCH DIAMETER | 3.2500 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 26 BOTH ENDS |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| SUPPLEMENTARY FEATURES | STEEL,MIL-S-13048,FS-4817 |
| TEETH QUANTITY | 51 |
| TOOTH FORM | STANDARD |