| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-13048 FS8615,FS8620 OR FS8720 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 | 17 |
| TEETH TYPE | STRAIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PITCH ANGLE | 34.2158 DEGREES |
| STYLE DESIGNATOR | PERIPHERAL FACE, FRONT HUB RECESSED, BACK HUB PROTRUDING |
| PITCH DIAMETER | 2.6154 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 3.590 INCHES |
| NOMINAL OUTSIDE DIAMETER | 2.9334 INCHES |
| FACE NOMINAL WIDTH | 0.720 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 2.590 INCHES SECOND END |
| BODY RECESS NOMINAL DEPTH | 0.0920 INCHES FIRST END |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.922 INCHES BOTH ENDS |
| BORE NOMINAL DEPTH | 3.590 INCHES BOTH ENDS |
| SPLINE QUANTITY | 18 BOTH ENDS |
| SPLINE PITCH DIAMETER | 0.9000 INCHES NOMINAL BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 2.380 INCHES SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 1.0600 INCHES SECOND END |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 1.190 INCHES FIRST END |
| 1.372 INCHES SECOND END |
| BODY STYLE | PLAIN, SOLID |
| SPECIAL FEATURES | TOOTH PRESSURE ANGLE 30.0 DEG |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 02978 |
| DESIGN CONTROL REFERENCE | 518509 |