The Fan,centrifugal, cataloged under National Stock Number 4140-01-554-8385, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Knight Electronics, Inc Div Orion Fans. Government technical data includes 8 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-554-8385 |
| Primary Part Number | OD6025-24HB |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Knight Electronics, Inc Div Orion Fans |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Length | 0.984 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Height | 2.360 INCHES NOMINAL IN |
| Width | 2.360 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 25.0 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| OD6025-24HB PRIMARY | Knight Electronics, Inc Div Orion Fans (USA) |
NSN 4140-01-554-8385 is a Fan,centrifugal, manufactured by Knight Electronics, Inc Div Orion Fans, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-554-8385 has 1 manufacturer part number on file: OD6025-24HB (Knight Electronics, Inc Div Orion Fans).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-596-7378. Verify interchangeability with system specifications before substitution.
Key specifications for OD6025-24HB: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Length: 0.984 INCHES NOMINAL IN; Drive Type: DIRECT; Height: 2.360 INCHES NOMINAL IN. 8 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.