The Lamp, cataloged under National Stock Number 6240-01-339-4763, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is The Boeing Company. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Lamp |
| FSC / FSG | 6240 — Electric Lamps (FSG 62) |
| Manufacturers | The Boeing Company (CAGE 77272) |
| Parameter | Value |
|---|---|
| NSN | 6240-01-339-4763 |
| Primary Part Number | QB12909 |
| Item Name | Lamp |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| QB12909 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 581-12A-1B3C1-F4L1N1-12 | C/1 Advisory reference — outside the item-of-supply concept Gama Engineering Ltd |
| 581-12A-1B3C1-F4L1N1-12 | 5/9 Secondary reference Alan Mann Aviation Group Limited |
NSN 6240-01-339-4763 is a Lamp, manufactured by The Boeing Company, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-339-4763 has 1 manufacturer part number on file: QB12909 (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-339-4764. Verify interchangeability with system specifications before substitution.
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.