| ASA STANDARD CHAIN NUMBER | 50-1 |
| BORE TYPE | INVOLUTE SPLINE |
| COUNTERBORE DEPTH | 1.437 INCHES NOMINAL AND 0.344 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 0.750 INCHES NOMINAL |
| COUNTERBORE LOCATION | BOTH ENDS |
| DESIGN FORM | PLAIN |
| DISTANCE FROM HUB END TO FLANGE END | 0.938 INCHES NOMINAL BOTH ENDS |
| FACE WIDTH | 0.468 INCHES NOMINAL |
| FIRST STEP DIAMETER | 1.406 INCHES NOMINAL AA END |
| FIRST STEP LENGTH | 0.688 INCHES NOMINAL AA END |
| FURNISHED ITEMS | COUNTERBORE |
| HARDNESS RATING TEST METHOD | BRINELL |
| HUB OUTSIDE DIAMETER | 1.182 INCHES NOMINAL BOTH ENDS |
| HUB OUTSIDE DIAMETER | 1.182 INCHES NOMINAL AA END |
| MATERIAL | STEEL |
| METALLIC HARDNESS RATING AND LOCATION | 200.0 BRINELL STANDARD MINIMUM BODY AND 240.0 BRINELL STANDARD MAXIMUM BODY |
| OUTSIDE DIAMETER | 4.321 INCHES NOMINAL |
| OVERALL LENGTH | 2.343 INCHES NOMINAL |
| PITCH DIAMETER | 3.995 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | STEPPED |
| SECOND STEP LENGTH | 0.250 INCHES NOMINAL AA END |
| SPLINE MINOR DIAMETER | 0.417 INCHES NOMINAL |
| SPLINE PITCH DIAMETER | 0.458 INCHES NOMINAL |
| SPLINE QUANTITY | 11 |
| SPLINE PRESSURE ANGLE IN DEG | 30.0 |
| SPLINE LENGTH | 0.594 INCHES NOMINAL |
| SPLINE MAJOR DIAMETER | 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| STYLE DESIGNATOR | PLAIN |
| TEETH HARDNESS RATING | 50.5 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 20 |
| TEETH ROW QUANTITY | 1 |
| TOOTH PITCH | 0.625 INCHES NOMINAL |