| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.3075 INCHES MINIMUM AND 0.3335 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.163 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.052 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| HOLE DIAMETER | 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM |
| INTERNAL STRAIGHT KEY WIDTH | 0.053 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.533 INCHES MINIMUM AND 0.559 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |