| MATERIAL | ALUMINUM ALLOY 6063 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200 FED SPEC SINGLE MATERIAL RESPONSE |
| SURFACE TREATMENT | CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE FIRST MOUNTING FACILITY |
| 2 THREADED HOLE SECOND MOUNTING FACILITY |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.218 INCHES MINIMUM AND |
| 0.224 INCHES MAXIMUM FIRST MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNC SECOND MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 0.138 INCHES SECOND MOUNTING FACILITY |
| THREAD CLASS | 2B SECOND MOUNTING FACILITY |