| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.130 INCHES MINIMUM AND 0.140 INCHES MAXIMUM |
| HOLE DIAMETER | 0.375 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 2 |
| INTERNAL STRAIGHT KEY WIDTH | 0.0934 INCHES MINIMUM AND 0.0944 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.073 INCHES MINIMUM AND 0.088 INCHES MAXIMUM |
| MATERIAL | ALUMINUM AND COPPER ALLOY 623 OVERALL |
| OUTSIDE DIAMETER | 0.594 INCHES NOMINAL |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |