NSN 4140-01-591-6540 · NIIN 015916540 · Part number 3912170
Oshkosh Defense Llc · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 75Q65
Government record, cited
NSN 4140-01-591-6540 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-591-6540. Manufacturer of record part number: 3912170.
Also searched as4140-01-591-6540 ·
4140015916540 ·
NIIN 015916540 ·
01-591-6540 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 75Q65 · 3912170
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: 3912170
Manufacturer: Oshkosh Defense Llc
General Description
The Fan Assembly,centrifugal, cataloged under National Stock Number 4140-01-591-6540, 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 Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Fan Assembly,centrifugal
FSC / FSG
4140 — Fans, Air Circulators, and Blower Equipment (FSG 41)
Manufacturers
Oshkosh Defense Llc (CAGE 75Q65)
Technical Specifications
Parameter
Value
NSN
4140-01-591-6540
Primary Part Number
3912170
Item Name
Fan Assembly,centrifugal
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 4140-01-591-6540?
NSN 4140-01-591-6540 is a Fan Assembly,centrifugal, manufactured by Oshkosh Defense Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-591-6540?
NSN 4140-01-591-6540 has 1 manufacturer part number on file: 3912170 (Oshkosh Defense Llc).
Is NSN 4140-01-591-6540 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.