The Lampholder, cataloged under National Stock Number 6250-00-504-0177, is classified within Federal Supply Class 6250 (Ballasts, Lampholders, and Starters) of the Lighting Fixtures and Lamps group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 15 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 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 | 6250-00-504-0177 |
| Primary Part Number | A6331 |
| Item Name | Lampholder |
| FSC / FSG | 6250 / 62 — Ballasts, Lampholders, and Starters |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Terminal Quantity | 1 |
| Terminal Type | SCREW |
| Center to Center Distance Between Mounting Holes | 1.312 INCHES NOMINAL IN |
| Mounting Method | FLANGE LOCATION NOT OTHERWISE SPECIFIED |
| Style Designator | CANDELABRA |
| Voltage in Volts | 28.0 |
| Mounting Hole Diameter | 0.140 INCHES NOMINAL IN |
| Outside Diameter | 0.687 INCHES NOMINAL IN |
| Lamp Base Type Accommodated | SINGLE CONTACT BAYONET CANDELABRA |
| Mounting Device Quantity | 1 |
| Mounting Feature Type | FLUSH |
| Material | STEEL SHELL |
| Material | PLASTIC PHENOLIC BODY |
| Current Rating in Amps | 0.7 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| A6331 PRIMARY | Grimes Aerospace Company (USA) |
NSN 6250-00-504-0177 is a Lampholder, manufactured by Grimes Aerospace Company, classified under FSC 6250, Ballasts, Lampholders, and Starters. Status: active.
NSN 6250-00-504-0177 has 1 manufacturer part number on file: A6331 (Grimes Aerospace Company).
3 possible matches (shared part number, not a government interchangeability claim): 5962-01-073-8366, 5340-01-183-4676, 4810-01-577-5320. Verify interchangeability with system specifications before substitution.
Key specifications for A6331: Overall Height: 1.562 INCHES NOMINAL IN; Terminal Quantity: 1; Terminal Type: SCREW; Center to Center Distance Between Mounting Holes: 1.312 INCHES NOMINAL IN. 15 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.