| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 0.250 INCHES BOTH ENDS |
| BORE STYLE | PLAIN BOTH ENDS |
| END NOMINAL DIAMETER | 0.330 INCHES FIRST END |
| END NOMINAL LENGTH | 0.125 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.125 INCHES |
| FIRST STEP NOMINAL DIAMETER | 0.250 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.233 INCHES FIRST END |
| HARDNESS RATING | 89.0 ROCKWELL B MINIMUM AND 94.0 ROCKWELL B MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,TYPE 416 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| PITCH DIAMETER | 1.2916 INCHES NOMINAL |
| MATERIAL | STEEL COMP 416 OVERALL |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.057 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 32 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 | 0.348 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 1.333 INCHES |
| NOMINAL OVERALL LENGTH | 0.473 INCHES |
| PRESSURE ANGLE | 14.5000 DEGREES |
| SPECIAL FEATURES | 45 DEG CHAMFER 0.016 IN. LG AT HUB END OF BORE |
| STYLE DESIGNATOR | PROTRUDING HUB |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEETH QUANTITY | 62 |
| TOOTH FORM | STANDARD |