| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 0.614 INCHES MINIMUM AND 0.639 INCHES MAXIMUM |
| HOLE DIAMETER | 1.572 INCHES MINIMUM AND 1.582 INCHES MAXIMUM |
| INTERNAL STRAIGHT KEY WIDTH | 0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| INTERNAL KEY QUANTITY | 1 |
| OUTSIDE DIAMETER | 1.890 INCHES MINIMUM AND 1.910 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL THICKNESS | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| STYLE DESIGNATOR | KEY |