| BORE TYPE | INVOLUTE SPLINE |
| DESIGN FORM | PLAIN |
| DISTANCE FROM HUB END TO FLANGE END | 0.125 INCHES NOMINAL AA END |
| FURNISHED ITEMS | LIGHTENING HOLE |
| FACE WIDTH | 0.375 INCHES NOMINAL |
| HARDNESS RATING TEST METHOD | NOT RATED |
| HUB OUTSIDE DIAMETER | 1.000 INCHES NOMINAL AA END |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE |
| OVERALL LENGTH | 0.500 INCHES NOMINAL |
| MATERIAL | STEEL COMP 630 |
| OUTSIDE DIAMETER | 3.875 INCHES NOMINAL |
| PITCH DIAMETER | 3.232 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| SPLINE MINOR DIAMETER | 0.700 INCHES MINIMUM AND 0.705 INCHES MAXIMUM |
| SPLINE PITCH DIAMETER | 0.750 INCHES NOMINAL |
| SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| SPLINE QUANTITY | 15 |
| SPLINE MAJOR DIAMETER | 0.854 INCHES NOMINAL |
| STYLE DESIGNATOR | PLAIN |
| SURFACE TREATMENT | PASSIVATE |
| TEETH QUANTITY PER ROW | 5 |
| TEETH ROW QUANTITY | 1 |