| APERTURE SHAPE | ROUND |
| APERTURE TYPE | COUNTERBORED |
| APERTURE DIAMETER | 8.380 INCHES MINIMUM AND 8.410 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 8.746 INCHES MINIMUM AND 8.746 INCHES MINIMUM AND 8.748 INCHES MAXIMUM8.748 INCHES MAXIMUM |
| COUNTERBORE DEPTH | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL |
| FEATURES PROVIDED | APERTURE |
| LENGTH | 10.750 INCHES NOMINAL10.750 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 6061 |
| MOUNTING HOLE DIAMETER | 0.312 INCHES NOMINAL ALL HOLES |
| MOUNTING HOLE QUANTITY | 6 |
| MOUNTING HOLE TYPE | THREADED |
| SCREW THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SHAPE | SQUARE |
| SPECIAL FEATURES | MOUNTING CONFIGURATION: EQUALLY SPACED AT 4.375 IN. HOLE CENTER TO HOLE CENTER |
| WIDTH | 10.750 INCHES NOMINAL10.750 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | PAINT POLYURETHANE |
| THICKNESS | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL |
| THREAD SIZE | 0.312-18 |