| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | T3 3-61 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | FRICTION FASTENER |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 0.400 INCHES NOMINAL SINGLE MOUNTING FACILITY FIRST CENTER GROUP |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 1.200 INCHES NOMINAL SINGLE MOUNTING FACILITY SECOND CENTER GROUP |
| OVERALL HEIGHT | 0.530 INCHES MAXIMUM |
| OVERALL LENGTH | 1.600 INCHES NOMINAL |
| OVERALL WIDTH | 0.600 INCHES NOMINAL |
| MATERIAL | COPPER |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| STYLE DESIGNATOR | CYLINDRICAL W/RECTANGULAR OR SQUARE BASE |
| SURFACE TREATMENT | SILVER |