| STYLE DESIGNATOR | ROUND FRAME, ROUND LENS TYPE |
| LAMP TYPE ACCOMMODATED AND QUANTITY | 1 INCANDESCENT |
| MOUNTING METHOD | PANEL |
| TERMINAL TYPE AND QUANTITY | 2 TAB, SOLDER LUG |
| OVERALL LENGTH | 0.810 INCHES MAXIMUM |
| OVERALL DIAMETER | 1.090 INCHES MINIMUM AND |
| 1.150 INCHES MAXIMUM |
| LAMP BULB SIZE DESIGNATOR | S-6 |
| LAMP BASE TYPE ACCOMMODATED | DOUBLE CONTACT BAYONET CANDELABRA |
| LENS QUANTITY | 1 |
| LENS MOUNTING METHOD | SCREW ON |
| LENS TYPE | CONVEX, KNURLED SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS LIGHT TRANSMISSION CHARACTERISTIC | TRANSLUCENT SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS FACE SURFACE CONDITION | CONCENTRIC RINGS 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 | 1.000 INCHES NOMINAL |
| PANEL THICKNESS FOR WHICH DESIGNED | 0.188 INCHES MAXIMUM |
| HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION | DRIPPROOF |
| NONDEFINITIVE SPEC/STD DATA | LH80LC21RD TYPE |
| SPEC/STD CONTROLLING DATA | |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | LH80/1LC21RD3 |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-L-3661/38 |