| STYLE DESIGNATOR | ROUND FRAME, ROUND LENS TYPE |
| LAMP TYPE ACCOMMODATED AND QUANTITY | 1 INCANDESCENT |
| MOUNTING METHOD | PANEL |
| TERMINAL TYPE AND QUANTITY | 2 WIRE LEAD |
| MATERIAL | COPPER ALLOY BODY |
| OVERALL LENGTH | 2.250 INCHES NOMINAL |
| OVERALL DIAMETER | 0.812 INCHES NOMINAL |
| SURFACE TREATMENT | NICKEL BODY |
| LAMP INDUSTRY NUMBER | 313 |
| LAMP BULB SIZE DESIGNATOR | T-3 1/4 |
| LAMP BASE TYPE ACCOMMODATED | MINIATURE BAYONET |
| LENS QUANTITY | 1 |
| LENS MOUNTING METHOD | SCREW IN |
| LENS TYPE | CONVEX, KNURLED, THREADED SHANK SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS LIGHT TRANSMISSION CHARACTERISTIC | TRANSLUCENT SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS FACE SURFACE CONDITION | SMOOTH SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS BACK SURFACE CONDITION | FROSTED SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS COLOR | RED SINGLE LIGHT 1ST POSITION HORIZONTAL |
| TRANSMITTED LIGHT COLOR | RED SINGLE LIGHT 1ST POSITION HORIZONTAL FULL DISPLAY DIVISION A |
| PANEL ACCOMMODATION HOLE DIAMETER | 0.688 INCHES NOMINAL |
| PANEL THICKNESS FOR WHICH DESIGNED | 0.250 INCHES MAXIMUM |