| BORE TYPE | STRAIGHT SPLINE |
| COUNTERBORE DIAMETER | 1.245 INCHES MINIMUM AND 1.255 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 0.281 INCHES NOMINAL |
| COUNTERBORE LOCATION | AA END |
| DESIGN FORM | WEBBED |
| FURNISHED ITEMS | COUNTERBORE FEATURE AND BORE |
| FACE WIDTH | 2.1718 INCHES NOMINAL |
| GROOVE DEPTH | 0.500 INCHES NOMINAL |
| GROOVE QUANTITY | 4 |
| GROOVE SHAPE | V |
| GROOVE WIDTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| HOLE LOCATION | EQUALLY SPACED ON 2.505 IN. BOLT CIRCLE |
| HUB OUTSIDE DIAMETER | 1.499 INCHES MINIMUM AND 1.501 INCHES MAXIMUM AA END |
| HUB OUTSIDE DIAMETER | 1.500 INCHES NOMINAL BB END |
| OUTSIDE DIAMETER | 5.7812 INCHES NOMINAL |
| OVERALL LENGTH | 5.4687 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-I-652, CLASS 30 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON CAST UNS F12101 OVERALL |
| MINOR DIAMETER | 0.849 INCHES MINIMUM AND 0.850 INCHES MAXIMUM SPLINE |
| SECURING HOLE QUANTITY | 6 |
| SECURING LOCATION | AA END |
| SECURING METHOD | THREADED HOLE(S) |
| PITCH DIAMETER | 5.375 INCHES NOMINAL |
| THREAD SIZE | 5/16 - 18 |
| V GROOVE ANGLE IN DEG | 28.0 |
| SPLINE LENGTH | 3.125 INCHES NOMINAL |
| SPLINE MAJOR DIAMETER | 0.984 INCHES MINIMUM AND 0.985 INCHES MAXIMUM |
| SPLINE QUANTITY | 6 |
| STYLE DESIGNATOR | WEBBED OR SPOKED |
| SURFACE TREATMENT | PHOSPHATE |