| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| HOLE DIAMETER | 0.266 INCHES MINIMUM AND 0.297 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.484 INCHES MINIMUM AND 0.516 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.579 INCHES NOMINAL |
| MATERIAL THICKNESS | 0.045 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |