The Lampholder, cataloged under National Stock Number 6250-00-299-7529, is classified within Federal Supply Class 6250 (Ballasts, Lampholders, and Starters) of the Lighting Fixtures and Lamps group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6250-00-299-7529 |
| Primary Part Number | 400 |
| Item Name | Lampholder |
| FSC / FSG | 6250 / 62 — Ballasts, Lampholders, and Starters |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Terminal Quantity | 2 |
| Terminal Type | SCREW |
| Wattage Rating in Watts | 660.0 |
| Voltage in Volts | 250.0 |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Lamp Base Type Accommodated | MEDIUM SCREW |
| Mounting Device Quantity | 1 |
| Material | CERAMIC BODY |
| Hazardous Locations/environmental Protection | NOT RATED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 6250-00-299-7529 is a Lampholder, manufactured by Westinghouse Electric Corp, classified under FSC 6250, Ballasts, Lampholders, and Starters. Status: active.
NSN 6250-00-299-7529 has 2 manufacturer part numbers on file: 400 (Westinghouse Electric Corp), 400 (Bryant Electric).
2 possible matches (shared part number, not a government interchangeability claim): 3040-00-652-9800, 4820-01-189-5489. Verify interchangeability with system specifications before substitution.
Key specifications for 400: Terminal Quantity: 2; Terminal Type: SCREW; Wattage Rating in Watts: 660.0; Voltage in Volts: 250.0. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.