NSN 4140-01-574-3372 · NIIN 015743372 · Part number B4W-75299-1
Fm Af, Llc Dba American Fan Company · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 75477
Government record, cited
NSN 4140-01-574-3372 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-574-3372. Manufacturer of record part number: B4W-75299-1.
Also searched as4140-01-574-3372 ·
4140015743372 ·
NIIN 015743372 ·
01-574-3372 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 75477 · B4W-75299-1 · B5W-73551-1 ITEM#1
Manufacturer of record: Fm Af, Llc Dba American Fan Company
Identification
NSN: 4140-01-574-3372
NIIN: 015743372
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: B4W-75299-1
Manufacturer: Fm Af, Llc Dba American Fan Company
General Description
The Impeller,fan,axial, cataloged under National Stock Number 4140-01-574-3372, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4140-01-574-3372
Primary Part Number
B4W-75299-1
Item Name
Impeller,fan,axial
FSC / FSG
4140 / 41 — Fans, Air Circulators, and Blower Equipment
Other items in FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082
IMPELLER,FAN,AXIAL
4140-00-001-1517
FAN,CENTRIFUGAL
4140-00-001-1536
FAN,VENTILATING
4140-00-001-1537
4140-00-001-1537 · Item name not on file
4140-00-001-3930
4140-00-001-3930 · Item name not on file
4140-00-001-6464
4140-00-001-6464 · Item name not on file
4140-00-001-6874
4140-00-001-6874 · Item name not on file
4140-00-001-6875
4140-00-001-6875 · Item name not on file
Frequently Asked Questions
What is NSN 4140-01-574-3372?
NSN 4140-01-574-3372 is a Impeller,fan,axial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-574-3372?
NSN 4140-01-574-3372 has 2 manufacturer part numbers on file: B4W-75299-1 (Fm Af, Llc Dba American Fan Company), B5W-73551-1 ITEM#1 (Fm Af, Llc Dba American Fan Company).
What are the specifications of B4W-75299-1?
Key specifications for B4W-75299-1: Part Name Assigned by Controlling Agency: WHEEL ASSEMBLY; End Item Identification: FAN, TUBEAXIAL. 0 specifications are documented in the U.S. Government catalog.
Is NSN 4140-01-574-3372 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.