The Fan,centrifugal, cataloged under National Stock Number 4140-00-554-7841, 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 Spencer Turbine Company the. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-00-554-7841 |
| Primary Part Number | 025 1-4 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Spencer Turbine Company the |
| Status | ACTIVE |
| Outlet Location | BOTTOM |
| Speed Adjustments | SINGLE SPEED |
| Phase | SINGLE |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.250 HORSEPOWER |
| Quantity | 1 |
| Style Designator | FIXED,ROUND OUTLETS |
| Ambient Temp at Full Rated Power | 40.0 CELSIUS DEGC |
| Discharge Direction | HORIZONTAL |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 3500.0 |
| Surface Treatment | PAINT HOUSING INSIDE |
| Surface Treatment | ANODIZE BLADE |
| Surface Treatment | PAINT HOUSING OUTSIDE |
| Environmental Protection | SPLASH PROOF |
| Width | 16.000 INCHES NOMINAL IN |
| Material | STEEL HOUSING |
| Material | ALUMINUM BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 50.0 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 |
|---|---|
| 025 1-4 PRIMARY | Spencer Turbine Company the (USA) |
| Reference | Meaning |
|---|---|
| 713554 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4140-00-554-7841 is a Fan,centrifugal, manufactured by Spencer Turbine Company the, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-554-7841 has 1 manufacturer part number on file: 025 1-4 (Spencer Turbine Company the).
2 possible matches (shared part number, not a government interchangeability claim): 6750-01-427-6225, 7530-01-610-1165. Verify interchangeability with system specifications before substitution.
Key specifications for 025 1-4: Outlet Location: BOTTOM; Speed Adjustments: SINGLE SPEED; Phase: SINGLE; Voltage in Volts and Current Type: 115.0 AC. 24 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.