| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.382 INCHES MINIMUM AND 0.388 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.053 INCHES MINIMUM AND 0.057 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.118 INCHES MINIMUM AND 0.122 INCHES MAXIMUM |
| HOLE DIAMETER | 0.5045 INCHES MINIMUM AND 0.5055 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.824 INCHES MINIMUM AND 0.828 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.063 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| MATERIAL | COPPER ALLOY OVERALL |
| SPECIAL FEATURES | BOTH SIDES OF CENTER HOLE CHAMFERED 0.010 INCH BY 45 DEGREES |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT | NICKEL OVERALL |