| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | WEBBED, SOLID |
| BORE NOMINAL DIAMETER | 0.943 INCHES BOTH ENDS |
| BORE STYLE | INVOLUTE SPLINE BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.4300 INCHES SECOND END |
| FACE NOMINAL WIDTH | 0.945 INCHES |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| HELIX ANGLE | 14.7000 DEGREES |
| HUB STYLE DESIGNATOR | PINNED SECOND END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| HUB NOMINAL DIAMETER | 1.500 INCHES FIRST END |
| HUB NOMINAL DIAMETER | 1.500 INCHES SECOND END |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626,COND D MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.138 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 3 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.242 INCHES SECOND END |
| NOMINAL OUTSIDE DIAMETER | 2.773 INCHES |
| PITCH DIAMETER | 2.6490 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPECIAL FEATURES | COUNTERBORE SECOND END,DIA. 0.877 IN. NOMINAL,DEPTH 0.430 IN. NOMINAL |
| SPLINE PITCH DIAMETER | 0.8125 INCHES NOMINAL BOTH ENDS |
| SPLINE QUANTITY | 13 BOTH ENDS |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| TEETH QUANTITY | 41 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH DIRECTION | RIGHT |
| TOOTH FORM | STUB |