| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.575 INCHES NOMINAL |
| HOLE DIAMETER | 1.250 INCHES MINIMUM AND 1.270 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 2 |
| INTERNAL STRAIGHT KEY WIDTH | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4,TEMPER T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MATERIAL THICKNESS | 0.029 INCHES MINIMUM AND 0.032 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |