PartsTable TECHNICAL DATA SHEET
NSN 4140-01-685-5438Government record, cited

Impeller, Fan, Centrifugal4140-01-685-5438

NSN 4140-01-685-5438 · NIIN 016855438 · Part number GM50644
Kohler Co Engine Plant Div · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 52845
Government record, cited
NSN 4140-01-685-5438 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-685-5438. Manufacturer of record part number: GM50644.
Also searched as  4140-01-685-5438 · 4140016855438 · NIIN 016855438 · 01-685-5438 · FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 52845 · GM50644
Nearby stock numbers  ·
Features
  • Impeller,fan,centrifugal — FSC 4140
  • 1 manufacturer part number on file
  • Manufacturer of record: Kohler Co Engine Plant Div
Identification
  • NSN: 4140-01-685-5438
  • NIIN: 016855438
  • FSC: 4140 — Fans, Air Circulators, and Blower Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: GM50644
  • Manufacturer: Kohler Co Engine Plant Div
General Description

The Impeller,fan,centrifugal, cataloged under National Stock Number 4140-01-685-5438, 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 Kohler Co Engine Plant Div. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-685-5438
Primary Part NumberGM50644
Item NameImpeller,fan,centrifugal
FSC / FSG4140 / 41 — Fans, Air Circulators, and Blower Equipment
ManufacturerKohler Co Engine Plant Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
GM50644 PRIMARY Kohler Co Engine Plant Div (USA)
No interchangeability data on file.
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 4140-01-685-5438?

NSN 4140-01-685-5438 is a Impeller,fan,centrifugal, manufactured by Kohler Co Engine Plant Div, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What part numbers are listed for NSN 4140-01-685-5438?

NSN 4140-01-685-5438 has 1 manufacturer part number on file: GM50644 (Kohler Co Engine Plant Div).

What are the specifications of GM50644?

Key specifications for GM50644: Special Features: SERVICE PART FROM MARINE GENERATOR SET, HYDRAULIC PUMP ADAPTER.; Part Name Assigned by Controlling Agency: KIT, IMPELLAR; End Item Identification: MODELS- 13-40EKOZD, 11-35EFKOZD. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4140-01-685-5438 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.
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