The Lamp,incandescent, cataloged under National Stock Number 6240-00-985-5235, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is General Dynamics Mission Systems, Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-00-985-5235 |
| Primary Part Number | 500T12TF2 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | General Dynamics Mission Systems, Inc. |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSPARENT |
| Filament Designation | C-13D |
| Base Style | FOUR PIN INDEXING |
| Rated Average Life | HOURS |
| Bulb Designator | T-12 |
| Burning Position | BASE DOWN TO HORIZONTAL |
| Features Provided | FILAMENT SHIELDING AND HEAT RESISTANT GLASS |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 500.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Bulb Style | T (TUBULAR) |
| Light Intensity Distribution Feature | OPAQUE END |
| Average Life Rating in Hours | 25.0 |
| 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 |
|---|---|
| 500T12TF2 | General Dynamics Mission Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| DEK/DFW/DHN | 3/2 Design control — primary reference U.S. Government activity |
| W-L-126 | 4/1 Identification reference U.S. Government activity |
| DFW115-120V | 5/9 Secondary reference U.S. Government activity |
NSN 6240-00-985-5235 is a Lamp,incandescent, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-00-985-5235 has 1 manufacturer part number on file: 500T12TF2 (General Dynamics Mission Systems, Inc.).
Key specifications for 500T12TF2: Bulb Light Transmission Characteristic: TRANSPARENT; Filament Designation: C-13D; Base Style: FOUR PIN INDEXING; Rated Average Life: HOURS. 13 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.