The Lamp,incandescent, cataloged under National Stock Number 6240-01-533-0851, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-533-0851 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filling Gas Type | HALOGEN |
| Base Style | RECESSED SINGLE CONTACT |
| Rated Average Life | HOURS |
| Bulb Designator | T3 |
| Wattage Rating | 500.000 WATTS |
| Light Center Length | 2.000 INCHES NOMINAL IN |
| Bulb Style | T (TUBULAR) |
| Voltage Rating | 120.000 VOLTS NOMINAL |
| Average Life Rating in Hours | 2000.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| INX3521 | 3/2 Design control — primary reference U.S. Government activity |
| 58996 | 5/9 Secondary reference Osram Sylvania Inc. |
NSN 6240-01-533-0851 is a Lamp,incandescent, classified under FSC 6240, Electric Lamps. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-676-5287, 2995-01-703-4292. Verify interchangeability with system specifications before substitution.
Key specifications for 6240-01-533-0851: Bulb Light Transmission Characteristic: TRANSPARENT; Filling Gas Type: HALOGEN; Base Style: RECESSED SINGLE CONTACT; Rated Average Life: HOURS. 10 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.