| ATTACHMENT METHOD | MOUNTING HOLE |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| FACE NOMINAL WIDTH | 0.313 INCHES |
| HELIX ANGLE | 2.5000 DEGREES |
| HUB NOMINAL DIAMETER | 0.391 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNC TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.138 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.218 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 0.519 INCHES |
| PITCH DIAMETER | 0.4780 INCHES NOMINAL |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| THREAD FORM DIRECTION | LEFT-HAND |
| THREAD FORM QUANTITY | 1 |