The Lamp,fluorescent, cataloged under National Stock Number 6240-01-424-3079, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Morning Star Industries Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-424-3079 |
| Primary Part Number | F40AB |
| Item Name | Lamp,fluorescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Morning Star Industries Inc |
| Status | ACTIVE |
| Base Style | MEDIUM BIPIN (FLUORESCENT) |
| Rated Average Life | HOURS |
| Bulb Designator | T-12 |
| Wattage Rating | 40.000 WATTS |
| Starting Characteristic | INSTANT |
| Bulb Style | T (TUBULAR) |
| Average Life Rating in Hours | 34000.0 |
| 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 |
|---|---|
| F40AB PRIMARY | Morning Star Industries Inc (USA) |
| F40/T12/AB | Morning Star Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| F40AB | 5/9 Secondary reference Phasar Inc |
| F40/T12/AB | 5/9 Secondary reference Phasar Inc |
NSN 6240-01-424-3079 is a Lamp,fluorescent, manufactured by Morning Star Industries Inc, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-424-3079 has 2 manufacturer part numbers on file: F40AB (Morning Star Industries Inc), F40/T12/AB (Morning Star Industries Inc).
Key specifications for F40AB: Base Style: MEDIUM BIPIN (FLUORESCENT); Rated Average Life: HOURS; Bulb Designator: T-12; Overall Length: 48.000 INCHES NOMINAL IN. 7 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.