| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 0.370 INCHES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.100 INCHES MINIMUM AND 0.110 INCHES MAXIMUM |
| EXTERNAL STRAIGHT KEY WIDTH | 0.200 INCHES NOMINAL |
| HARDNESS RATING | 50.0 ROCKWELL C NOMINAL |
| HOLE DIAMETER | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.028 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 321 OVERALL |
| OUTSIDE DIAMETER | 0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |