The Lamp,incandescent, cataloged under National Stock Number 6240-01-307-0263, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Duro-Test Lighting. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6240-01-307-0263 |
| Primary Part Number | VL2557 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Duro-Test Lighting |
| Status | ACTIVE |
| Bulb Light Transmission Characteristic | TRANSLUCENT |
| Filament Designation | C-9 |
| Base Style | MEDIUM SCREW |
| Rated Average Life | HOURS |
| Bulb Designator | DC-19 |
| Filament Heavy Duty Service Rating | NOT RATED |
| Wattage Rating | 100.000 WATTS |
| Emitted Light Characteristic | WHITE |
| Light Output Rating | 1290.000 LUMENS NOMINAL SINGLE RATING |
| Light Intensity Distribution Feature | INSIDE FROSTED |
| Voltage Rating | 125.000 VOLTS MINIMUM AND 130.000 VOLTS MAXIMUM |
| Average Life Rating in Hours | 3500.0 |
| 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 |
|---|---|
| VL2557 PRIMARY | Duro-Test Lighting (USA) |
| Reference | Meaning |
|---|---|
| 100DC19/IF 125-130V | 5/2 Secondary reference U.S. Government activity |
| VL2557 | 5/9 Secondary reference U.S. Government activity |
| VL2557 | 5/9 Secondary reference Vl Service Lighting Corp |
NSN 6240-01-307-0263 is a Lamp,incandescent, manufactured by Duro-Test Lighting, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-307-0263 has 1 manufacturer part number on file: VL2557 (Duro-Test Lighting).
Key specifications for VL2557: Bulb Light Transmission Characteristic: TRANSLUCENT; Filament Designation: C-9; Base Style: MEDIUM SCREW; Rated Average Life: HOURS. 12 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.