| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND |
| 34.0 ROCKWELL C MAXIMUM BODY |
| 58.0 ROCKWELL C MINIMUM AND |
| 62.0 ROCKWELL C MAXIMUM TEETH |
| TEETH QUANTITY | 29 |
| TEETH TYPE | STRAIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PITCH ANGLE | 42.1844 DEGREES |
| PITCH DIAMETER | 4.1429 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 2.317 INCHES |
| NOMINAL OUTSIDE DIAMETER | 4.3207 INCHES |
| FACE NOMINAL WIDTH | 1.000 INCHES |
| BODY RECESS NOMINAL DEPTH | 0.1170 INCHES FIRST END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 1.672 INCHES BOTH ENDS |
| BORE NOMINAL DEPTH | 2.317 INCHES BOTH ENDS |
| SPLINE QUANTITY | 33 BOTH ENDS |
| SPLINE PITCH DIAMETER | 1.6500 INCHES NOMINAL BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.473 INCHES FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 2.677 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| HUB NOMINAL DIAMETER | 2.120 INCHES FIRST END |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 12 PLAIN AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.407 INCHES AXIALLY THROUGH BODY, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 5.375 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | TOOTH PRESSURE ANGLE 30.0 DEG |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 02978 |
| DESIGN CONTROL REFERENCE | 517878 |