| APERTURE DIAMETER | 2.450 INCHES NOMINAL |
| BOLT CIRCLE HOLE QUANTITY | 6 |
| CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/ APERTURE |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| OUTSIDE DIAMETER | 4.150 INCHES NOMINAL |
| OUTSIDE RAISED SURFACE DIAMETER | 2.670 INCHES MINIMUM AND 2.674 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.586 INCHES MINIMUM AND 0.606 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MOUNTING HOLE DIAMETER | 0.280 INCHES MINIMUM AND 0.287 INCHES MAXIMUM |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED |
| RAISED SURFACE HEIGHT | 0.258 INCHES MINIMUM AND 0.263 INCHES MAXIMUM |
| STYLE DESIGNATOR | ROUND |