The Lamp,incandescent, cataloged under National Stock Number 6240-00-155-7974, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is General Electric Company. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-155-7974 |
| Primary Part Number | 25T8-5-105 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-5 |
| Base Style | DOUBLE CONTACT CANDELABRA PREFOCUS |
| Rated Average Life | HOURS |
| Bulb Designator | AT-8 |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 25.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Bulb Style | T (TUBULAR) |
| Average Life Rating in Hours | 100.0 |
| 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 |
|---|---|
| 25T8-5-105 | General Electric Company (USA) |
| 25T8-5-105V | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| 25T8-5 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 25T8-5 | 5/9 Secondary reference General Electric Co Lamp Division of Consumer Products Group |
| 25T8-5-105 | 5/9 Secondary reference General Electric Co Lamp Division of Consumer Products Group |
| WL101 | 4/1 Identification reference U.S. Government activity |
NSN 6240-00-155-7974 is a Lamp,incandescent, manufactured by General Electric Company, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-155-7974 has 3 manufacturer part numbers on file: 25T8-5-105 (General Electric Company), 25T8-5-105V (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), 25T8-5 (General Electric Company).
Key specifications for 25T8-5-105: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-5; Base Style: DOUBLE CONTACT CANDELABRA PREFOCUS; 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.