| ATTACHMENT METHOD | MOUNTING HOLE | 
| BODY STYLE | PLAIN, SOLID | 
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS | 
| BORE STYLE | PLAIN BOTH ENDS | 
| FACE NOMINAL WIDTH | 0.188 INCHES | 
| HUB NOMINAL DIAMETER | 0.340 INCHES FIRST END | 
| HUB STYLE DESIGNATOR | PINNED FIRST END | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CLASS 7,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | 
| MATERIAL | STEEL COMP 303 OVERALL | 
| PITCH DIAMETER | 0.3950 INCHES NOMINAL | 
| MOUNTING HOLE NOMINAL DIAMETER | 0.062 INCHES TRANSVERSELY THROUGH HUB FIRST END | 
| 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 PLAIN  AND 1 THREADED TRANSVERSELY THROUGH HUB FIRST END | 
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.250 INCHES FIRST END | 
| NOMINAL OUTSIDE DIAMETER | 0.441 INCHES | 
| NOMINAL OVERALL LENGTH | 0.430 INCHES | 
| PRESSURE ANGLE | 14.5000 DEGREES | 
| STYLE DESIGNATOR | PROTRUDING HUB | 
| TEETH QUANTITY | 19 | 
| TOOTH FORM | STANDARD |