| MATERIAL | STEEL OVERALL |
| STYLE DESIGNATOR | KEY |
| EXTERNAL KEY QUANTITY | 19 |
| HOLE DIAMETER | 85.0 MILLIMETERS NOMINAL |
| OUTSIDE DIAMETER | 102.0 MILLIMETERS NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 10.0 MILLIMETERS NOMINAL |
| INTERNAL STRAIGHT KEY WIDTH | 10.0 MILLIMETERS NOMINAL |
| DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY | 81.5 MILLIMETERS NOMINAL |
| OVERALL DISTANCE INCLUDING KEYS | 119.0 MILLIMETERS NOMINAL |
| MATERIAL THICKNESS | 1.75 MILLIMETERS NOMINAL |
| EXTERNAL PREBENT KEY ANGLE | 25.0 DEGREES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | MASS LOCK WASHER |