The Ir Lamp, cataloged under National Stock Number 6240-01-459-0494, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Grimes Aerospace Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Ir Lamp |
| FSC / FSG | 6240 — Electric Lamps (FSG 62) |
| Manufacturers | Grimes Aerospace Company (CAGE 72914); Leonardo Spa Helicopters Division - Production Site (CAGE A0126) |
| Parameter | Value |
|---|---|
| NSN | 6240-01-459-0494 |
| Primary Part Number | 55-1753-1 |
| Item Name | Ir Lamp |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 55-1753-1 PRIMARY | Grimes Aerospace Company (USA) |
| 55-1753-1 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| 10475902 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 55-1753-1 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 6240-01-459-0494 is a Ir Lamp, manufactured by Grimes Aerospace Company, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-459-0494 has 2 manufacturer part numbers on file: 55-1753-1 (Grimes Aerospace Company), 55-1753-1 (Leonardo Spa Helicopters Division - Production Site).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-621-8520. 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.
NSN 6240-01-459-0494 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.