The Lamp,incandescent, cataloged under National Stock Number 6240-00-643-4530, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-643-4530 |
| Primary Part Number | 40T8-115T0125V |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-8 |
| Base Style | MEDIUM SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | T-8 |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 40.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Bulb Style | T (TUBULAR) |
| Current Rating for Which Designed | 0.320 AMPERES MINIMUM AND 0.350 AMPERES MAXIMUM |
| Average Life Rating in Hours | 1500.0 |
| 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 |
|---|---|
| 40T8-115T0125V PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 40T8-115T0125V | 5/9 Secondary reference Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company |
NSN 6240-00-643-4530 is a Lamp,incandescent, manufactured by Westinghouse Electric Corp, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-643-4530 has 1 manufacturer part number on file: 40T8-115T0125V (Westinghouse Electric Corp).
Key specifications for 40T8-115T0125V: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-8; Base Style: MEDIUM SCREW; Rated Average Life: HOURS. 11 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.