The Lamp,fluorescent, cataloged under National Stock Number 6240-01-313-6861, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-313-6861 |
| Primary Part Number | F20T12/D/ECO |
| Item Name | Lamp,fluorescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Base Style | MEDIUM BIPIN (FLUORESCENT) |
| Rated Average Life | HOURS |
| Bulb Designator | T-12 |
| Wattage Rating | 20.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Starting Characteristic | PREHEAT |
| Bulb Style | T (TUBULAR) |
| Average Life Rating in Hours | 22000.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| F20T12/D/ECO | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| F20-T12-24 WHITE | Westron Corporation Dba Westron Lighting (USA) |
| Reference | Meaning |
|---|---|
| 21404 | 5/9 Secondary reference Westron Corporation Dba Westron Lighting |
| F20T12 | C/1 Advisory reference — outside the item-of-supply concept Westron Corporation Dba Westron Lighting |
| F20T12-24/SPECTRUMLITE-P/HD22M | 3/9 Design control — primary reference Westron Corporation Dba Westron Lighting |
NSN 6240-01-313-6861 is a Lamp,fluorescent, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-313-6861 has 2 manufacturer part numbers on file: F20T12/D/ECO (W.w. Grainger, Inc. Div Government Sales Division), F20-T12-24 WHITE (Westron Corporation Dba Westron Lighting).
1 possible match (shared part number, not a government interchangeability claim): 6240-01-716-0629. Verify interchangeability with system specifications before substitution.
Key specifications for F20T12/D/ECO: Base Style: MEDIUM BIPIN (FLUORESCENT); Rated Average Life: HOURS; Bulb Designator: T-12; Overall Length: 24.000 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.