| BODY STYLE | PLAIN, SOLID |
| BODY RECESS NOMINAL DEPTH | 0.120 INCHES SECOND END |
| BORE NOMINAL DIAMETER | 0.405 INCHES FIRST END |
| BORE STYLE | INVOLUTE SPLINE FIRST END |
| COUNTERBORE NOMINAL DEPTH | 0.160 INCHES SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 1.000 INCHES SECOND END |
| END NOMINAL DIAMETER | 0.740 INCHES FIRST END |
| END NOMINAL LENGTH | 0.300 INCHES FIRST END |
| FACE NOMINAL WIDTH | 0.280 INCHES |
| FIRST STEP NOMINAL DIAMETER | 1.300 INCHES FIRST END |
| FIRST STEP NOMINAL LENGTH | 0.320 INCHES FIRST END |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| HUB STYLE DESIGNATOR | 1 STEP FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM-A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A331 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4140 OVERALL |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.620 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 4.055 INCHES |
| NOMINAL OVERALL LENGTH | 0.900 INCHES |
| PITCH DIAMETER | 4.0000 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 8 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPLINE PITCH DIAMETER | 0.4688 INCHES NOMINAL FIRST END |
| SPLINE QUANTITY | 15 FIRST END |
| SPECIAL FEATURES | RECESSBODY DIA. 3.120 IN. |
| STYLE DESIGNATOR | PROTRUDING HUB, RECESSED BODY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-STD-171 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| TEETH QUANTITY | 48 |
| TOOTH FORM | STANDARD |