| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | ST12 12-5 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | FRICTION FASTENER |
| FEATURES PROVIDED | W/ELECTRODE LEAD INSERTION |
| OVERALL DIAMETER | 1.625 INCHES NOMINAL |
| OVERALL LENGTH | 2.937 INCHES NOMINAL |
| MATERIAL | COPPER ALLOY |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED BASE SINGLE MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 1.500 INCHES SINGLE MOUNTING FACILITY |
| STYLE DESIGNATOR | CYLINDRICAL |
| THREAD CLASS | 2A SINGLE MOUNTING FACILITY |
| THREAD QUANTITY PER INCH | 12 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNF SINGLE MOUNTING FACILITY |