| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| FACE NOMINAL WIDTH | 0.188 INCHES |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL |
| PITCH DIAMETER | 3.4380 INCHES NOMINAL |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 40 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 | 0.250 INCHES FIRST END |
| NOMINAL OVERALL LENGTH | 0.438 INCHES |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| TEETH QUANTITY | 165 |
| TOOTH FORM | STANDARD |