| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 0.118 INCHES MINIMUM AND 0.121 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.150 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1040 OVERALL |
| OUTSIDE DIAMETER | 0.800 INCHES MINIMUM AND 0.820 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 0.6915 INCHES NOMINAL |
| STYLE DESIGNATOR | KEY |