| EIA ELECTRON TUBE ENVELOPE ACCOMMODATED | T3 3-1 |
| ACCOMMODATED ITEM SECURING DEVICE TYPE | FRICTION FASTENER |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 1.250 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP |
| OVERALL HEIGHT | 0.438 INCHES NOMINAL |
| OVERALL LENGTH | 1.438 INCHES NOMINAL |
| OVERALL WIDTH | 0.416 INCHES NOMINAL |
| MATERIAL | COPPER ALLOY |
| MOUNTING FACILITY TYPE AND QUANTITY | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.086 INCHES NOMINAL SINGLE MOUNTING FACILITY |
| STYLE DESIGNATOR | RECTANGULAR PRISM |