The Lamp,incandescent, cataloged under National Stock Number 6240-00-155-8677, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Raytheon Company Div Rmd Strategic. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-155-8677 |
| Primary Part Number | 5481-2 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Raytheon Company Div Rmd Strategic |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-2R |
| Base Style | MINIATURE SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | T-3 1/4 |
| Features Provided | FILAMENT SHIELDING AND HEAT RESISTANT GLASS |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 1.580 WATTS |
| Emitted Light Characteristic | COLORLESS |
| Light Output Rating | 0.820 BEAM CANDLEPOWER NOMINAL SINGLE RATING |
| Light Center Length | 0.970 INCHES NOMINAL IN |
| Bulb Style | T (TUBULAR) |
| Current Rating for Which Designed | 0.250 AMPERES NOMINAL |
| Voltage Rating | 6.300 VOLTS NOMINAL |
| Average Life Rating in Hours | 3000.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5481-2 | Raytheon Company Div Rmd Strategic (USA) |
| 27F120 | Newark Electronics Corporation Dba Newark (USA) |
| 46 | Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA) |
| Reference | Meaning |
|---|---|
| MS15536-1 | 2/2 Government specification standardization U.S. Government activity |
| 119453 | 5/1 Secondary reference Army Weapons Command Attn Amswe-Ree-S |
| 119453 | 5/1 Secondary reference Chrysler Realty Company Llc Dba Daimler Chrysler |
| 333-0076 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| W-L-111 | 4/1 Identification reference U.S. Government activity |
| 46 | 5/1 Secondary reference Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| 119453 | 5/1 Secondary reference General Motors Corp |
| 7586711 | 5/1 Secondary reference Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
NSN 6240-00-155-8677 is a Lamp,incandescent, manufactured by Raytheon Company Div Rmd Strategic, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-155-8677 has 3 manufacturer part numbers on file: 5481-2 (Raytheon Company Div Rmd Strategic), 27F120 (Newark Electronics Corporation Dba Newark), 46 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron).
3 possible matches (shared part number, not a government interchangeability claim): 5935-00-306-4569, 3040-01-008-7412, 5940-01-306-4545. Verify interchangeability with system specifications before substitution.
Key specifications for 5481-2: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-2R; Base Style: MINIATURE SCREW; Rated Average Life: HOURS. 15 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.