| MATERIAL | STEEL COMP 440C OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 CL 440C FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 42.0 ROCKWELL C MINIMUM AND |
| 45.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 270 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| PITCH DIAMETER | 8.4375 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 8.500 INCHES |
| FACE NOMINAL WIDTH | 0.515 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.643 INCHES FIRST END |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 7.750 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| END NOMINAL LENGTH | 0.111 INCHES FIRST END |
| END NOMINAL DIAMETER | 7.937 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.532 INCHES FIRST END |
| FIRST STEP NOMINAL DIAMETER | 8.125 INCHES FIRST END |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.125 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| SPECIAL FEATURES | EIGHT PARTIALLY DRILLED HOLES ON GEAR FACE,0.164-32 UNC EQUALLY SPACED ON 8.062 BOLT CIRCLE DIA. HOLES ARE 0.469 IN. DEEP |