| BODY STYLE | PLAIN, SOLIDPLAIN, SOLID | 
| BORE NOMINAL DIAMETER | 0.375 INCHES BOTH ENDS0.375 INCHES BOTH ENDS | 
| BORE STYLE | W/ KEYWAY BOTH ENDSW/ KEYWAY BOTH ENDS | 
| FACE NOMINAL WIDTH | 0.281 INCHES0.281 INCHES | 
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM  AND 50.0 ROCKWELL C MINIMUM  AND 55.0 ROCKWELL C MAXIMUM OVERALL55.0 ROCKWELL C MAXIMUM OVERALL | 
| HUB NOMINAL DIAMETER | 0.625 INCHES SECOND END0.625 INCHES SECOND END | 
| HUB STYLE DESIGNATOR | PLAIN FIRST ENDPLAIN FIRST END | 
| KEYWAY NOMINAL WIDTH | 0.062 INCHES BOTH ENDS0.062 INCHES BOTH ENDS | 
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE  AND 66 FED STD SINGLE MATERIAL RESPONSE  AND AISI/SAE E434H ASSN STD SINGLE MATERIAL RESPONSE OVERALLAISI/SAE E434H ASSN STD SINGLE MATERIAL RESPONSE OVERALL | 
| PITCH ANGLE | 45.0000 DEGREES45.0000 DEGREES | 
| PITCH DIAMETER | 1.0000 INCHES NOMINAL1.0000 INCHES NOMINAL | 
| MATERIAL | STEEL COMP E4340H OVERALLSTEEL COMP E4340H OVERALL | 
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.2270 INCHES BOTH ENDS0.2270 INCHES BOTH ENDS | 
| NOMINAL OUTSIDE DIAMETER | 1.0320 INCHES1.0320 INCHES | 
| NOMINAL OVERALL LENGTH | 0.594 INCHES0.594 INCHES | 
| PRESSURE ANGLE | 20.0000 DEGREES20.0000 DEGREES | 
| STYLE DESIGNATOR | PERIPHERAL FACE, BACK HUB PROTRUDINGPERIPHERAL FACE, BACK HUB PROTRUDING | 
| TEETH QUANTITY | 1616 | 
| TEETH TYPE | STRAIGHTSTRAIGHT |