| APERTURE DIAMETER | 1.3125 INCHES NOMINAL |
| BOLT CIRCLE HOLE QUANTITY | 4 |
| COUNTERBORE DIAMETER | 1.5005 INCHES MINIMUM AND 1.5015 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 1.2500 INCHES NOMINAL |
| COUNTERSINK DIAMETER | 0.2187 INCHES NOMINAL |
| COUNTERSINK ANGLE | 82.0 DEGREES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/APERTURE |
| OUTSIDE DIAMETER | 3.7500 INCHES NOMINAL |
| OUTSIDE RAISED SURFACE DIAMETER | 2.8740 INCHES MINIMUM AND 2.8750 INCHES MAXIMUM |
| OVERALL THICKNESS | 1.3750 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-750 FED SPEC 1ST MATERIAL RESPONSE OR QQ-C-00465,ALLOY 632M FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| MATERIAL | COPPER ALLOY 510 OR COPPER ALLOY OVERALL |
| MINOR THICKNESS | 0.1155 INCHES NOMINAL |
| MOUNTING BOLT CIRCLE DIAMETER | 3.3120 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| MOUNTING HOLE DIAMETER | 0.4200 INCHES NOMINAL |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED, COUNTERSUNK |
| SPECIAL FEATURES | 2 ADDITIONAL HOLES ON FACE |
| RAISED SURFACE HEIGHT | 0.8375 INCHES NOMINAL |
| STYLE DESIGNATOR | ROUND |