| BORE TYPE | INVOLUTE SPLINE |
| DESIGN FORM | PLAIN |
| DISTANCE FROM HUB END TO FLANGE END | 0.600 INCHES NOMINAL AA END |
| FACE WIDTH | 0.150 INCHES NOMINAL |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HUB OUTSIDE DIAMETER | 0.760 INCHES NOMINAL AA END |
| OUTSIDE DIAMETER | 3.250 INCHES NOMINAL |
| OVERALL LENGTH | 0.750 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729, COMP 4130, COND N MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 |
| METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM BODY AND 35.0 ROCKWELL C MAXIMUM BODY |
| PITCH DIAMETER | 2.620 INCHES NOMINAL |
| SPLINE LENGTH | 0.750 INCHES NOMINAL |
| SPLINE MAJOR DIAMETER | 0.525 INCHES NOMINAL |
| SPLINE MINOR DIAMETER | 0.438 INCHES NOMINAL |
| SPLINE PITCH DIAMETER | 0.469 INCHES NOMINAL |
| SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| SPLINE QUANTITY | 15 |
| STYLE DESIGNATOR | PLAIN |
| TEETH ROW QUANTITY | 1 |
| TEETH HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 4 |
| TOOTH PITCH | 1.086 INCHES NOMINAL |