PartsTable TECHNICAL DATA SHEET
NSN 4140-01-564-0779Government record, cited

Fan, Centrifugal4140-01-564-0779

NSN 4140-01-564-0779 · NIIN 015640779 · Part number 1939K66
Mcmaster-Carr Supply Co · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 0KVE6
Government record, cited
NSN 4140-01-564-0779 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-564-0779. Manufacturer of record part number: 1939K66.
Also searched as  4140-01-564-0779 · 4140015640779 · NIIN 015640779 · 01-564-0779 · FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 0KVE6 · 1939K66
Nearby stock numbers  ·
Features
  • Fan,centrifugal — FSC 4140
  • Voltage in Volts and Current Type: 24.0 DC
  • Drive Type: DIRECT
  • Prime Mover Type: ELECTRIC MOTOR
  • Electrical Connection Type: WIRE LEAD
  • 1 manufacturer part number on file
  • Manufacturer of record: Mcmaster-Carr Supply Co
Identification
  • NSN: 4140-01-564-0779
  • NIIN: 015640779
  • FSC: 4140 — Fans, Air Circulators, and Blower Equipment
  • FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
  • Primary part number: 1939K66
  • Manufacturer: Mcmaster-Carr Supply Co
General Description

The Fan,centrifugal, cataloged under National Stock Number 4140-01-564-0779, 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 Mcmaster-Carr Supply Co. Government technical data includes 4 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-564-0779
Primary Part Number1939K66
Item NameFan,centrifugal
FSC / FSG4140 / 41 — Fans, Air Circulators, and Blower Equipment
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Voltage in Volts and Current Type24.0 DC
Drive TypeDIRECT
Prime Mover TypeELECTRIC MOTOR
Electrical Connection TypeWIRE LEAD
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
1939K66 PRIMARY Mcmaster-Carr Supply Co (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 4140-01-564-0779?

NSN 4140-01-564-0779 is a Fan,centrifugal, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.

What part numbers are listed for NSN 4140-01-564-0779?

NSN 4140-01-564-0779 has 1 manufacturer part number on file: 1939K66 (Mcmaster-Carr Supply Co).

What are the specifications of 1939K66?

Key specifications for 1939K66: Voltage in Volts and Current Type: 24.0 DC; Drive Type: DIRECT; Part Name Assigned by Controlling Agency: DC EQUIPMENT COOLING FAN; Prime Mover Type: ELECTRIC MOTOR. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4140-01-564-0779 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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