| BODY STYLE | WEBBED, WITH LIGHTENING HOLES | 
| END NOMINAL DIAMETER | 0.250 INCHES FIRST END | 
| END NOMINAL DIAMETER | 0.250 INCHES SECOND END | 
| END NOMINAL LENGTH | 0.196 INCHES FIRST END | 
| END NOMINAL LENGTH | 0.196 INCHES SECOND END | 
| FACE NOMINAL WIDTH | 0.250 INCHES | 
| FIRST STEP NOMINAL DIAMETER | 0.375 INCHES FIRST END | 
| FIRST STEP NOMINAL DIAMETER | 0.375 INCHES SECOND END | 
| FIRST STEP NOMINAL LENGTH | 0.281 INCHES SECOND END | 
| FIRST STEP NOMINAL LENGTH | 0.759 INCHES FIRST END | 
| HARDNESS RATING | 57.0 ROCKWELL C MINIMUM  AND 60.0 ROCKWELL C MAXIMUM OVERALL | 
| HUB STYLE DESIGNATOR | 1 STEP FIRST END | 
| HUB STYLE DESIGNATOR | 1 STEP SECOND END | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | 
| PITCH DIAMETER | 2.5000 INCHES NOMINAL | 
| MATERIAL | STEEL COMP 440C OVERALL | 
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.477 INCHES SECOND END | 
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.955 INCHES FIRST END | 
| NOMINAL OUTSIDE DIAMETER | 2.560 INCHES | 
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 | 
| PRESSURE ANGLE | 20.0000 DEGREES | 
| STYLE DESIGNATOR | PROTRUDING HUBS | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| SURFACE TREATMENT | PASSIVATE OVERALL | 
| TEETH QUANTITY | 80 | 
| TOOTH FORM | STANDARD |