| APERTURE DIAMETER | 1.330 INCHES MINIMUM AND 1.370 INCHES MAXIMUM |
| BOLT CIRCLE HOLE QUANTITY | 4 |
| COUNTERBORE DEPTH | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 1.500 INCHES MINIMUM AND 1.510 INCHES MAXIMUM |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| OUTSIDE DIAMETER | 2.031 INCHES MINIMUM AND 2.034 INCHES MAXIMUM |
| MATERIAL | STEEL COMP E4340 OUTER RING |
| MOUNTING BOLT CIRCLE DIAMETER | 1.750 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| MOUNTING HOLE DIAMETER | 0.133 INCHES MINIMUM AND 0.141 INCHES MAXIMUM |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED |
| RAISED SURFACE HEIGHT | 0.105 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM OUTER RING |