The Fan,centrifugal, cataloged under National Stock Number 4140-00-618-3561, 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 Fm Af, Llc Dba American Fan Company. Government technical data includes 30 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-618-3561 |
| Primary Part Number | 9W35161 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 1 FLANGE |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 32.500 INCHES NOMINAL IN |
| Length | 53.469 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 7.500 HORSEPOWER |
| Quantity | 1 |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Diameter | 29.250 INCHES NOMINAL IN |
| Features Provided | NONSPARKING |
| Ambient Temp at Full Rated Power | 65.0 CELSIUS DEGC |
| Discharge Direction | HORIZONTAL |
| Outlet Inside Width | 19.375 INCHES NOMINAL IN |
| Height | 81.625 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Operating Speed at Rated Capacity in RPM | 1150.0 |
| Surface Treatment | ZINC HOUSING INSIDE |
| Surface Treatment | ZINC BLADE |
| Surface Treatment | ZINC HOUSING OUTSIDE |
| Environmental Protection | SPLASH PROOF |
| Width | 50.062 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY BLADE |
| Material | STEEL HOUSING |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| 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 |
|---|---|
| 9W35161 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 3290895 | 5/1 Secondary reference U.S. Government activity |
| 9W35161 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
NSN 4140-00-618-3561 is a Fan,centrifugal, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-618-3561 has 1 manufacturer part number on file: 9W35161 (Fm Af, Llc Dba American Fan Company).
Key specifications for 9W35161: Outlet Location: TOP; Mounting Facility Type and Quantity: 1 FLANGE; Speed Adjustments: SINGLE SPEED; Phase: THREE. 30 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.