| MATERIAL | STEEL COMP 8620 OVERALL | 
| MATERIAL DOCUMENT AND CLASSIFICATION | -S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | 
| HARDNESS RATING | 60.0 ROCKWELL C NOMINAL OVERALL | 
| TEETH QUANTITY | 23 | 
| TOOTH FORM | STANDARD | 
| PRESSURE ANGLE | 25.0000 DEGREES | 
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE FLUSH HUB | 
| PITCH DIAMETER | 3.8333 INCHES NOMINAL | 
| NOMINAL OVERALL LENGTH | 0.870 INCHES | 
| NOMINAL OUTSIDE DIAMETER | 4.164 INCHES | 
| FACE NOMINAL WIDTH | 0.470 INCHES | 
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.400 INCHES FIRST END | 
| BORE STYLE | INVOLUTE SPLINE FIRST END | 
|  | W/COUNTERBORE SECOND END | 
| BORE NOMINAL DIAMETER | 1.000 INCHES SECOND END | 
| SPLINE QUANTITY | 15 BOTH ENDS | 
| SPLINE PITCH DIAMETER | 0.9375 INCHES NOMINAL BOTH ENDS | 
| COUNTERBORE NOMINAL DEPTH | 0.300 INCHES FIRST END | 
| COUNTERBORE NOMINAL DIAMETER | 1.140 INCHES FIRST END | 
| HUB STYLE DESIGNATOR | 1 GROOVE FIRST END | 
| HUB NOMINAL DIAMETER | 1.560 INCHES FIRST END | 
| END NOMINAL DIAMETER | 1.560 INCHES FIRST END | 
| FIRST GROOVE NOMINAL WIDTH | 0.140 INCHES FIRST END | 
| FIRST GROOVE NOMINAL DIAMETER | 1.370 INCHES FIRST END | 
| NOMINAL DISTANCE FROM END TO FIRST GROOVE | 0.130 INCHES FIRST END | 
| BODY STYLE | WEBBED, SOLID | 
| ATTACHMENT METHOD | MOUNTING HOLE | 
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN TRANSVERSELY THROUGH HUB, FIRST END | 
| MOUNTING HOLE NOMINAL DIAMETER | 0.125 INCHES AXIALLY THROUGH HUB, FIRST END | 
| THE MANUFACTURERS DATA |  | 
| MANUFACTURERS CODE | 19207 | 
| DESIGN CONTROL REFERENCE | 7709251 |