| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | ST16 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | COMPRESSION RING |
| DISTANCE FROM RETAINER CENTER TO CENTERLINE OF MOUNTING FACILITY | 1.219 INCHES NOMINAL |
| FEATURES PROVIDED | POST LOCKING TAB |
| MATERIAL | STEEL |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED STUD(S) SINGLE MOUNTING FACILITY |
| MOUNTING STUD LENGTH | 4.250 INCHES NOMINAL SINGLE MOUNTING FACILITY |
| NOMINAL THREAD SIZE | 0.164 INCHES SINGLE MOUNTING FACILITY |
| OVERALL DIAMETER | 1.750 INCHES NOMINAL |
| OVERALL HEIGHT | 4.250 INCHES NOMINAL |
| OVERALL LENGTH | 2.438 INCHES NOMINAL |
| STYLE DESIGNATOR | PLAIN CAP HOLD DOWN W/ SCREW |
| SURFACE TREATMENT | PASSIVATE |
| THREAD CLASS | 2A SINGLE MOUNTING FACILITY |
| THREAD QUANTITY PER INCH | 32 SINGLE MOUNTING FACILITY |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY |