| MOUNTING HOLE THREAD QUANTITY PER INCH | 13 TRANSVERSELY THROUGH HUB, FIRST END |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 10.0 ROCKWELL C MINIMUM AND |
| 20.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 82 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | LEFT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| HELIX ANGLE | 14.9167 DEGREES |
| STYLE DESIGNATOR | RECESSED HUBS |
| PITCH DIAMETER | 16.4000 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 16.682 INCHES |
| FACE NOMINAL WIDTH | 3.000 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND RECESSED HUB END | 0.250 INCHES BOTH ENDS |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| BORE NOMINAL DIAMETER | 2.999 INCHES BOTH ENDS |
| KEYWAY NOMINAL WIDTH | 0.377 INCHES BOTH ENDS |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 1.695 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | PLAIN BOTH ENDS |
| HUB NOMINAL DIAMETER | 4.500 INCHES FIRST END |
| 4.500 INCHES SECOND END |
| BODY STYLE | WEBBED, WITH LIGHTENING HOLES |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.500 INCHES TRANSVERSELY THROUGH HUB, FIRST END |