| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, SOLID |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 1.750 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| BORE STYLE | HEX BOTH ENDS |
| FACE NOMINAL WIDTH | 2.032 INCHES |
| FACE TYPE | CONCAVE |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HELIX ANGLE | 2.9331 DEGREES |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 2.500 INCHES BOTH ENDS |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.124 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN TRANSVERSELY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.580 INCHES FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.374 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 5.488 INCHES |
| NOMINAL WIDTH ACROSS FLATS | 1.438 INCHES BOTH ENDS |
| PITCH DIAMETER | 4.7696 INCHES MINIMUM AND 4.7746 INCHES MAXIMUM |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | ONE PROTRUDING HUB, ONE RECESSED HUB |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY M,CL 1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-P-16232,TY Z,CL 1 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| TEETH QUANTITY | 20 |
| THROAT NOMINAL RADIUS | 1.135 INCHES |
| TOOTH DIRECTION | LEFT |