| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.151 INCHES NOMINAL |
| HOLE DIAMETER | 0.390 INCHES NOMINAL |
| INTERNAL STRAIGHT KEY WIDTH | 0.043 INCHES MINIMUM AND 0.049 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 3 |
| OUTSIDE DIAMETER | 0.515 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.0215 INCHES MINIMUM AND 0.0285 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 631 OVERALL |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |