| APERTURE DIAMETER | 1.540 INCHES MINIMUM AND 1.560 INCHES MAXIMUM |
| BOLT CIRCLE HOLE QUANTITY | 3 |
| CORNER RADIUS | 0.230 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/ APERTURE |
| HARDNESS RATING | 20.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM |
| LENGTH | 3.400 INCHES NOMINAL |
| OUTSIDE RAISED SURFACE DIAMETER | 1.770 INCHES MINIMUM AND 1.780 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.090 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MOUNTING HOLE DIAMETER | 0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED |
| RAISED SURFACE HEIGHT | 0.128 INCHES MINIMUM AND 0.142 INCHES MAXIMUM |
| SPECIAL FEATURES | COUNTERBORE ICLUDED W/DIA 1.654 IN. MIN 1.660 IN. MAX AND DEPTH 0.078 IN. MIN 0.082 IN. MAX |
| WIDTH | 2.437 INCHES NOMINAL |
| STYLE DESIGNATOR | DIAMOND |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2485 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |