The Lamp,incandescent, cataloged under National Stock Number 6240-01-550-0447, is classified within Federal Supply Class 6240 (Electric Lamps) of the Lighting Fixtures and Lamps group. The manufacturer of record is Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron. Government technical data includes 6 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6240-01-550-0447 |
| Primary Part Number | W577 |
| Item Name | Lamp,incandescent |
| FSC / FSG | 6240 / 62 — Electric Lamps |
| Manufacturer | Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron |
| Status | ACTIVE |
| Filament Designation | C-2F |
| Base Style | MINIATURE SCREW |
| Bulb Diameter | 10.3 MILLIMETERS NOMINAL MM |
| Bulb Designator | T-3 1/4 |
| Wattage Rating | 3.000 WATTS |
| Bulb Style | E (ELIPTICAL) |
| 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 |
|---|---|
| W577 PRIMARY | Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA) |
NSN 6240-01-550-0447 is a Lamp,incandescent, manufactured by Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron, classified under FSC 6240, Electric Lamps. Status: active.
NSN 6240-01-550-0447 has 1 manufacturer part number on file: W577 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron).
Key specifications for W577: Filament Designation: C-2F; Base Style: MINIATURE SCREW; Bulb Diameter: 10.3 MILLIMETERS NOMINAL MM; Bulb Designator: T-3 1/4. 6 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.