| BODY STYLE | WEBBED, WITH LIGHTENING HOLES |
| BORE NOMINAL DIAMETER | 0.379 INCHES BOTH ENDS |
| BORE STYLE | W/ KEYWAY BOTH ENDS |
| HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HUB |
| HARDNESS RATING | 92.0 ROCKWELL SUPERFICIAL 15-N NOMINAL TEETH |
| HUB NOMINAL DIAMETER | 0.550 INCHES FIRST END |
| HUB STYLE DESIGNATOR | PLAIN FIRST END |
| KEYWAY NOMINAL WIDTH | 0.064 INCHES BOTH ENDS |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6470 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL UNS K24065 OVERALL |
| NOMINAL DISTANCE FROM BORE CENTER TO KEYWAY BOTTOM | 0.230 INCHES BOTH ENDS |
| PRESSURE ANGLE | 25.0000 DEGREES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| TEETH QUANTITY | 23 |
| TEETH TYPE | SPUR |
| TOOTH FORM | STANDARD |