| ANGLE BETWEEN EXTERNAL KEYS | 60.0 DEGREES NOMINAL |
| EXTERNAL KEY QUANTITY | 6 |
| EXTERNAL PREBENT KEY ANGLE | 90.0 DEGREES NOMINAL |
| EXTERNAL PREBENT KEY LENGTH | 0.085 INCHES MINIMUM AND 0.095 INCHES MAXIMUM |
| EXTERNAL PREBENT KEY WIDTH | 0.146 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| HOLE DIAMETER | 1.125 INCHES MINIMUM AND 1.135 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 1.670 INCHES MINIMUM AND 1.680 INCHES MAXIMUM |
| OVERALL DISTANCE INCLUDING KEYS | 1.690 INCHES MINIMUM AND 1.700 INCHES MAXIMUM |
| MATERIAL THICKNESS | 0.028 INCHES MINIMUM AND 0.032 INCHES MAXIMUM |
| MATERIAL | GRAPHITE OVERALL |
| SMALL EXTERNAL PREBENT KEY WIDTH | 0.146 INCHES MINIMUM AND 0.156 INCHES MAXIMUM |
| STYLE DESIGNATOR | KEY |