The Lamp,fluorescent, cataloged under National Stock Number 6240-01-411-0637, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Lamp Industry for Use with Industry Designations and Abbreviations for Lamps. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6240-01-411-0637 |
| Primary Part Number | F20T12SPX35 |
| Item Name | Lamp,fluorescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| Status | ACTIVE |
| Base Style | MEDIUM BIPIN (FLUORESCENT) |
| Rated Average Life | HOURS |
| Bulb Diameter | 1.500 INCHES NOMINAL IN |
| Bulb Designator | T-12 |
| Wattage Rating | 20.000 WATTS |
| Starting Characteristic | PREHEAT |
| Bulb Style | T (TUBULAR) |
| Average Life Rating in Hours | 9000.0 |
| 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 |
|---|---|
| F20T12SPX35 PRIMARY | Lamp Industry for Use with Industry Designations and Abbreviations for Lamps |
| Reference | Meaning |
|---|---|
| F20T12/SPX35 | 5/9 Secondary reference General Electric Co Lamp Div |
NSN 6240-01-411-0637 is a Lamp,fluorescent, manufactured by Lamp Industry for Use with Industry Designations and Abbreviations for Lamps, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-411-0637 has 1 manufacturer part number on file: F20T12SPX35 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps).
Key specifications for F20T12SPX35: Base Style: MEDIUM BIPIN (FLUORESCENT); Rated Average Life: HOURS; Bulb Diameter: 1.500 INCHES NOMINAL IN; Bulb Designator: T-12. 8 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.