| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.252 INCHES MINIMUM AND 0.262 INCHES MAXIMUM |
| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.158 INCHES MINIMUM AND 0.168 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HOLE DIAMETER | 0.371 INCHES MINIMUM AND 0.381 INCHES MAXIMUM |
| INTERNAL STRAIGHT KEY WIDTH | 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| OUTSIDE DIAMETER | 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.604 INCHES MINIMUM AND 0.614 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |