| STYLE DESIGNATOR | ROUND FRAME, ROUND LENS TYPE |
| LAMP TYPE ACCOMMODATED AND QUANTITY | 1 INCANDESCENT |
| MOUNTING METHOD | PANEL |
| TERMINAL TYPE AND QUANTITY | 2 SOLDER LUG |
| MATERIAL | COPPER ALLOY BODY |
| OVERALL LENGTH | 1.170 INCHES NOMINAL |
| OVERALL DIAMETER | 0.550 INCHES NOMINAL |
| SURFACE TREATMENT | NICKEL BODY |
| LAMP BULB SIZE DESIGNATOR | T-1 3/4 |
| LAMP BASE TYPE ACCOMMODATED | MIDGET FLANGED |
| LENS QUANTITY | 1 |
| LENS MOUNTING METHOD | SCREW IN |
| LENS TYPE | CYLINDRICAL, EXTERNAL THREAD 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 | SMOOTH SINGLE LIGHT 1ST POSITION HORIZONTAL |
| LENS COLOR | WHITE, LUNAR SINGLE LIGHT 1ST POSITION HORIZONTAL |
| TRANSMITTED LIGHT COLOR | WHITE, LUNAR SINGLE LIGHT 1ST POSITION HORIZONTAL FULL DISPLAY DIVISION A |
| PANEL ACCOMMODATION HOLE DIAMETER | 0.484 INCHES MINIMUM AND |
| 0.500 INCHES MAXIMUM |
| PANEL THICKNESS FOR WHICH DESIGNED | 0.156 INCHES MAXIMUM |
| HAZARDOUS LOCATIONS/ENVIRONMENTAL PROTECTION | ELECTROMAGNETIC RADIATION SUPPRESSIVE |
| FURNISHED ITEMS AND QUANTITY | 1 HEXAGON NUT AND |
| 1 LOCK WASHER |
| SPEC/STD CONTROLLING DATA | |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-L-3661 STYLE LH73-LC26 |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-L-3661/5B TYPE LH73/2-LC26WT |