| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | ST16 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | FRICTION FASTENER |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 0.875 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 2.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP |
| OVERALL HEIGHT | 4.750 INCHES NOMINAL |
| OVERALL LENGTH | 2.750 INCHES NOMINAL |
| OVERALL WIDTH | 2.125 INCHES NOMINAL |
| MATERIAL | PLASTIC MELAMINE |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 THREADED STUD(S) SINGLE MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 0.190 INCHES SINGLE MOUNTING FACILITY |
| STYLE DESIGNATOR | SPRING LOCK DUAL PILLAR HOLD DOWN |
| THREAD CLASS | 2A SINGLE MOUNTING FACILITY |
| THREAD QUANTITY PER INCH | 32 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNF SINGLE MOUNTING FACILITY |