The Lamp,metal Halide, cataloged under National Stock Number 6240-01-344-9558, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Westron Corporation Dba Westron Lighting. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6240-01-344-9558 |
| Primary Part Number | MS1000/C/BD |
| Item Name | Lamp,metal Halide |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Westron Corporation Dba Westron Lighting |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSLUCENT |
| Base Style | MOGUL SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | BT-56 |
| Criticality Code Justification | FEAT |
| Wattage Rating | 1000.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Light Output Rating | 95800.000 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 |
| Part Number | Manufacturer |
|---|---|
| MS1000/C/BD PRIMARY | Westron Corporation Dba Westron Lighting (USA) |
| MS1000/C/BD PRIMARY | Venture Lighting International, Inc. Dba Venture Lighting Intl (USA) |
| 94669 PRIMARY | Venture Lighting International, Inc. Dba Venture Lighting Intl (USA) |
| MS1000/C/BD | Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA) |
| Reference | Meaning |
|---|---|
| 94669 | 5/9 Secondary reference Venture Lighting Intl |
| 64461 | 5/2 Secondary reference U.S. Government activity |
| MS1000/C/BD-ONLY | 3/2 Design control — primary reference U.S. Government activity |
| MS1000/C/BD | 5/9 Secondary reference Venture Lighting Intl |
NSN 6240-01-344-9558 is a Lamp,metal Halide, manufactured by Westron Corporation Dba Westron Lighting, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-344-9558 has 4 manufacturer part numbers on file: MS1000/C/BD (Westron Corporation Dba Westron Lighting), MS1000/C/BD (Venture Lighting International, Inc. Dba Venture Lighting Intl), 94669 (Venture Lighting International, Inc. Dba Venture Lighting Intl), MS1000/C/BD (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-360-6753. Verify interchangeability with system specifications before substitution.
Key specifications for MS1000/C/BD: Bulb Light Transmission Characteristic: TRANSLUCENT; 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.