| DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY | 72.5 MILLIMETERS MINIMUM AND 73.5 MILLIMETERS MAXIMUM |
| EXTERNAL PREBENT KEY LENGTH | 34.0 MILLIMETERS NOMINAL |
| EXTERNAL PREBENT KEY WIDTH | 25.0 MILLIMETERS NOMINAL |
| HARDNESS RATING | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM |
| HOLE DIAMETER | 72.0 MILLIMETERS NOMINAL |
| INTERNAL PREBENT KEY LENGTH | 79.0 MILLIMETERS NOMINAL |
| MATERIAL THICKNESS | 5.5 MILLIMETERS MINIMUM AND 6.5 MILLIMETERS MAXIMUM |
| MATERIAL | STEEL OVERALL |
| OUTSIDE DIAMETER | 132.0 MILLIMETERS NOMINAL |
| OVERALL DISTANCE INCLUDING KEYS | 146.0 MILLIMETERS NOMINAL |
| SPECIAL FEATURES | USE AS NEEDED ON BACKHOE ASSEMBLY |
| STYLE DESIGNATOR | KEY |
| SURFACE TREATMENT | DICHROMATE ZINC OVERALL |