| APERTURE DIAMETER | 1.980 INCHES MINIMUM AND 2.020 INCHES MAXIMUM |
| APERTURE SHAPE | ROUND |
| OUTSIDE DIAMETER | 9.490 INCHES MINIMUM AND 9.510 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 6061 |
| MOUNTING HOLE DIAMETER | 0.250 INCHES NOMINAL ALL HOLES |
| MOUNTING HOLE DIAMETER | 0.279 INCHES MINIMUM AND 0.281 INCHES MAXIMUM SECOND HOLE |
| MOUNTING HOLE DIAMETER | 0.375 INCHES NOMINAL FIRST HOLE |
| MOUNTING HOLE QUANTITY | 2 AND 6 AND 8 |
| SPECIAL FEATURES | 0.250-20 UNC 2B AND 0.375-24 UNF 2B THREADS |
| SHAPE | ROUND |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541, CL 1A MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMATE |
| THICKNESS | 2.380 INCHES NOMINAL |