The Lamp,mercury Vapor, cataloged under National Stock Number 6240-00-985-5244, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is General Electric Company Dba Ge. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-985-5244 |
| Primary Part Number | H175W39-22 |
| Item Name | Lamp,mercury Vapor |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | General Electric Company Dba Ge |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Base Style | MOGUL SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | BT-28 |
| Specification/standard Data | 80204-H39-22KC-W MANUFACTURERS STANDARD |
| Wattage Rating | 175.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Light Output Rating | 7700.000 LUMENS NOMINAL SINGLE RATING |
| Light Center Length | 5.000 INCHES NOMINAL IN |
| Bulb Style | BT (BULGED TUBULAR) |
| Light Intensity Distribution Feature | PHOSPHOR COATED BAND |
| Average Life Rating in Hours | 24000.0 |
| 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 |
|---|---|
| H175W39-22 | General Electric Company Dba Ge (USA) |
| H175W39-22BT | General Electric Company Dba Ge (USA) |
| Reference | Meaning |
|---|---|
| C78-1308 | 3/1 Design control — primary reference U.S. Government activity |
| H39-22KCW | 3/2 Design control — primary reference U.S. Government activity |
NSN 6240-00-985-5244 is a Lamp,mercury Vapor, manufactured by General Electric Company Dba Ge, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-985-5244 has 2 manufacturer part numbers on file: H175W39-22 (General Electric Company Dba Ge), H175W39-22BT (General Electric Company Dba Ge).
Key specifications for H175W39-22: Bulb Light Transmission Characteristic: TRANSPARENT; Base Style: MOGUL SCREW; Rated Average Life: HOURS; Bulb Designator: BT-28. 12 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.