| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.3125 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM |
| HOLE DIAMETER | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.6875 INCHES NOMINAL |
| MATERIAL THICKNESS | 0.0575 INCHES MINIMUM AND 0.0675 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| STYLE DESIGNATOR | KEY |