| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 1.336 INCHES NOMINAL |
| HOLE DIAMETER | 2.973 INCHES MINIMUM AND 3.003 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 1 |
| INTERNAL STRAIGHT KEY WIDTH | 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 4.173 INCHES MINIMUM AND 4.203 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-631 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| MATERIAL THICKNESS | 0.218 INCHES MINIMUM AND 0.238 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1008 OR STEEL COMP 1025 OVERALL |
| STYLE DESIGNATOR | KEY |
| SURFACE FINISH | 63.0 MICROINCHES BOTTOM |