| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.312 INCHES BOTH ENDS |
| END NOMINAL DIAMETER | 0.562 INCHES FIRST END |
| END NOMINAL LENGTH | 0.203 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.188 INCHES |
| FIRST STEP NOMINAL DIAMETER | 2.195 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.812 INCHES FIRST END |
| HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HUB NOMINAL DIAMETER | 0.375 INCHES SECOND END |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| HUB STYLE DESIGNATOR | PLAIN SECOND END |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-764,COND H,CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 416 OVERALL |
| 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 |
| MOUNTING HOLE NOMINAL DIAMETER | 0.086 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.112 INCHES TRANSVERSELY THROUGH HUB FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.047 INCHES SECOND END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.015 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 2.312 INCHES |
| PITCH DIAMETER | 2.2500 INCHES NOMINAL |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171,FINISH NO.5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEETH QUANTITY | 72 |
| TOOTH FORM | STANDARD |