| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | T9 9-18 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | FRICTION FASTENER |
| OVERALL DIAMETER | 1.500 INCHES NOMINAL |
| OVERALL LENGTH | 2.875 INCHES NOMINAL |
| MATERIAL | ALUMINUM ALLOY |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED HOLE(S) SINGLE MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 1.500 INCHES SINGLE MOUNTING FACILITY |
| STYLE DESIGNATOR | CYLINDRICAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | ANODIZE |
| THREAD QUANTITY PER INCH | 8 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UN SINGLE MOUNTING FACILITY |