| ATTACHMENT METHOD | MOUNTING HOLE |
| BORE NOMINAL DIAMETER | 0.125 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| FACE NOMINAL WIDTH | 0.260 INCHES |
| HELIX ANGLE | 3.5833 DEGREES |
| HUB NOMINAL DIAMETER | 0.312 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PINNED FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| PITCH DIAMETER | 0.4990 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.086 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 56 TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 1 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.220 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 0.530 INCHES |
| NOMINAL OVERALL LENGTH | 0.480 INCHES |
| PRESSURE ANGLE | 14.5000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD FORM DIRECTION | RIGHT-HAND |
| THREAD FORM QUANTITY | 2 |