| DISTANCE FROM CENTERLINE TO END OF KEY | 0.655 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| EXTERNAL STRAIGHT KEY WIDTH | 1.140 INCHES NOMINAL |
| HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 59.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 0.631 INCHES MINIMUM AND 0.633 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| MATERIAL THICKNESS | 0.069 INCHES MINIMUM AND 0.071 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 1090 OR STEEL COMP 1095 OVERALL |
| OUTSIDE DIAMETER | 1.140 INCHES NOMINAL |
| STYLE DESIGNATOR | KEY |
| SURFACE FINISH | 63.0 MICROINCHES OUTER |