| LAMP INDUSTRY NUMBER | 120PSB |
| LAMP TYPE ACCOMMODATED AND QUANTITY | 1 INCANDESCENT |
| LAMP BASE TYPE ACCOMMODATED | TELEPHONE SLIDE NO.TWO |
| LAMP BULB SIZE DESIGNATOR | T-2 |
| LENS FACE SURFACE CONDITION | SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL |
| LENS BACK SURFACE CONDITION | SMOOTH SINGLE LIGHT FIRST POSITION HORIZONTAL |
| LENS COLOR | GREEN SINGLE LIGHT FIRST POSITION HORIZONTAL |
| LENS LIGHT TRANSMISSION CHARACTERISTIC | TRANSPARENT SINGLE LIGHT FIRST POSITION HORIZONTAL |
| LENS QUANTITY | 1 |
| LENS TYPE | DOME, KNURLED, INTERNAL THREAD SINGLE LIGHT FIRST POSITION HORIZONTAL |
| OVERALL LENGTH | 3.375 INCHES NOMINAL |
| PANEL ACCOMMODATION HOLE DIAMETER | 0.688 INCHES NOMINAL |
| MATERIAL | PLASTIC BODY |
| MOUNTING METHOD | SCREW ON LENS |
| MOUNTING METHOD | UNTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED |
| TRANSMITTED LIGHT COLOR | GREEN SINGLE LIGHT FIRST POSITION HORIZONTAL FULL DISPLAY DIVISION A |
| STYLE DESIGNATOR | ROUND FRAME, ROUND LENS TYPE |
| TERMINAL TYPE AND QUANTITY | 3 SCREW |