| APERTURE DIAMETER | 2.750 INCHES NOMINAL |
| BOLT CIRCLE HOLE QUANTITY | 8 |
| COUNTERBORE DEPTH | 0.296 INCHES MINIMUM AND 0.662 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 3.543 INCHES NOMINAL |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| COUNTERSINK DIAMETER | 0.520 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE STYLE | RAISED SURFACE W/APERTURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | ALUMINUM ALLOY 6061 OVERALL |
| MINOR THICKNESS | 0.380 INCHES MINIMUM AND 0.405 INCHES MAXIMUM |
| MOUNTING BOLT CIRCLE DIAMETER | 5.375 INCHES NOMINAL |
| MOUNTING HOLE ARRANGEMENT STYLE | SINGLE BOLT HOLE CIRCLE |
| MOUNTING HOLE DIAMETER | 0.256 INCHES NOMINAL |
| MOUNTING HOLE TYPE | ROUND, UNTHREADED, COUNTERSUNK |
| OUTSIDE DIAMETER | 6.500 INCHES NOMINAL |
| OUTSIDE RAISED SURFACE DIAMETER | 4.721 INCHES MINIMUM AND 4.724 INCHES MAXIMUM |
| OVERALL THICKNESS | 0.985 INCHES MINIMUM AND 1.015 INCHES MAXIMUM |
| RAISED SURFACE HEIGHT | 0.605 INCHES MINIMUM AND 0.610 INCHES MAXIMUM |
| STYLE DESIGNATOR | ROUND |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541,CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMATE OVERALL |