| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-250/7 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/4 FED SPEC 3RD MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 5083 OR ALUMINUM ALLOY 5086 |
| MOUNTING HOLE DIAMETER | 0.3125 INCHES NOMINAL ALL HOLES |
| MOUNTING HOLE QUANTITY | 12 |
| MOUNTING HOLE TYPE | THREADED |
| SCREW THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SHAPE | RECTANGULAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541, CL 1A MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMATE |
| THICKNESS | 0.1250 INCHES NOMINAL0.1250 INCHES NOMINAL |
| THREAD SIZE | 0.3125-18 |