The Lamp,metal Halide, cataloged under National Stock Number 6240-01-344-9559, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-344-9559 |
| Item Name | Lamp,metal Halide |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Base Style | MOGUL SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | BT-56 |
| Criticality Code Justification | FEAT |
| Wattage Rating | 1000.000 WATTS |
| Emitted Light Characteristic | COLORLESS |
| Light Output Rating | 88000.000 LUMENS NOMINAL SINGLE RATING |
| Light Center Length | 9.500 INCHES NOMINAL IN |
| Bulb Style | BT (BULGED TUBULAR) |
| Average Life Rating in Hours | 12000.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| MP1000/BU-ONLY | 3/2 Design control — primary reference U.S. Government activity |
| 64714 | 5/2 Secondary reference U.S. Government activity |
NSN 6240-01-344-9559 is a Lamp,metal Halide, classified under FSC 6240, Electric Lamps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 6240-01-345-9537. Verify interchangeability with system specifications before substitution.
Key specifications for 6240-01-344-9559: Bulb Light Transmission Characteristic: TRANSPARENT; Base Style: MOGUL SCREW; Rated Average Life: HOURS; Bulb Designator: BT-56. 11 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.