| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 1.376 INCHES MINIMUM AND 1.380 INCHES MAXIMUM |
| HARDNESS RATING | 55.0 ROCKWELL B MINIMUM AND 70.0 ROCKWELL B MAXIMUM |
| HOLE DIAMETER | 3.010 INCHES MINIMUM AND 3.015 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 1 |
| INTERNAL STRAIGHT KEY WIDTH | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1020 OVERALL |
| OUTSIDE DIAMETER | 3.615 INCHES MINIMUM AND 3.635 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT | CADMIUM OVERALL |