| ATTACHMENT METHOD | MOUNTING HOLE |
| ARC NOMINAL LENGTH | 0.9640 INCHES |
| BORE NOMINAL DIAMETER | 1.375 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| FACE NOMINAL WIDTH | 0.040 INCHES |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8,ALLOY 6061,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.094 INCHES TRANSVERSELY THROUGH FACE |
| MOUNTING HOLE TYPE AND QUANTITY | 4 PLAIN TRANSVERSELY THROUGH FACE |
| NOMINAL OUTSIDE RADIUS | 2.7705 INCHES |
| NOMINAL OVERALL LENGTH | 0.040 INCHES |
| PITCH RADIUS | 2.7500 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 9 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPECIAL FEATURES | ITEM SIMILAR TO STYL F3 EXCEPT NO HUB |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E511 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| TEETH QUANTITY | 14 |
| TOOTH FORM | STANDARD |