The Fan,centrifugal, cataloged under National Stock Number 4140-01-317-3558, 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 21 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-317-3558 |
| Primary Part Number | FI-1139 |
| 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 |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Shaft Bearing Type | BALL |
| Frequency in Hertz | 60.0 |
| Outlet Inside Height | 8.625 INCHES NOMINAL IN |
| Length | 7.250 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 460.0 AC |
| Drive Type | BELT |
| Prime Mover Power Rating | 2.000 HORSEPOWER |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Ambient Temp at Full Rated Power | 60.0 FAHRENHEIT AND 90.0 FAHRENHEIT DEGF |
| Discharge Direction | VERTICAL UP |
| Outlet Inside Width | 7.250 INCHES NOMINAL IN |
| Height | 27.688 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 1930.0 |
| Width | 29.750 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Air Flow Rate | 1100.0 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 |
|---|---|
| SZ-21MW-CW-DB-ARR.9L | Fm Af, Llc Dba American Fan Company (USA) |
| 89301344-45 (1344) | Fm Af, Llc Dba American Fan Company (USA) |
| FI-1139 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 89301344-45 (1344) | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| SZ-21MW-CW-DB-ARR.9L | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| FI-1139 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
NSN 4140-01-317-3558 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 4140-01-317-3558 has 3 manufacturer part numbers on file: SZ-21MW-CW-DB-ARR.9L (Fm Af, Llc Dba American Fan Company), 89301344-45 (1344) (Fm Af, Llc Dba American Fan Company), FI-1139 (Fm Af, Llc Dba American Fan Company).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-333-1439. Verify interchangeability with system specifications before substitution.
Key specifications for FI-1139: Outlet Location: TOP; Speed Adjustments: SINGLE SPEED; Phase: THREE; Shaft Bearing Type: BALL. 21 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.