The Lamp,incandescent, cataloged under National Stock Number 6240-01-487-3840, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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,incandescent |
| FSC / FSG | 6240 — Electric Lamps (FSG 62) |
| Manufacturers | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (CAGE 58536) |
| Parameter | Value |
|---|---|
| NSN | 6240-01-487-3840 |
| Primary Part Number | A50588-8 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| 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 |
|---|---|
| A50588-8 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| A-A-50588 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| 1819NR | 5/1 Secondary reference Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| MS15571-10 | 5/9 Secondary reference U.S. Government activity |
NSN 6240-01-487-3840 is a Lamp,incandescent, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-487-3840 has 1 manufacturer part number on file: A50588-8 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-668-4124. 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.