PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21B62145Impeller,fan,axial

Raytheon Company Div Corp · NSN 4140-00-541-4188 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-541-4188 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-541-4188. Primary manufacturer part number: 21B62145.
Features
  • Impeller,fan,axial — FSC 4140
  • Material: ALUMINUM OVERALL
  • Blade Quantity: 4
  • Attachment Method: SETSCREW
  • Diameter: 3.000 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Raytheon Company Div Corp
Applications
  • Applications requiring Aluminum Overall construction
General Description

The Impeller,fan,axial, cataloged under National Stock Number 4140-00-541-4188, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Raytheon Company Div Corp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4140-00-541-4188
Primary Part Number21B62145
Item NameImpeller,fan,axial
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerRaytheon Company Div Corp
StatusCANCELLED
MaterialALUMINUM OVERALL
Blade Quantity4
Attachment MethodSETSCREW
Diameter3.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4140-00-245-0799107516 INTERCHANGEABLE
Impeller,fan,axial
Viking Technologies, Ltd.
4140-00-299-6328 INTERCHANGEABLE
Impeller,fan,axial
4140-00-300-8111 INTERCHANGEABLE
Impeller,fan,axial
4140-00-395-7006 INTERCHANGEABLE
Impeller,fan,axial
4140-00-844-3518 INTERCHANGEABLE
Impeller,fan,axial
5815-00-920-2495 INTERCHANGEABLE
Lock Slide,right
5905-01-197-797603274 INTERCHANGEABLE
Resistor
Basler Electric Co
Cross-Reference Index
Part NumberManufacturer
21B62145 PRIMARY Raytheon Company Div Corp (USA)
0327-4 Regal-Beloit Corporation Dba Fasco Group Div Cassville Division (USA)
Related Parts
4140-00-245-0799INTERCHANGEABLE
IMPELLER,FAN,AXIAL
107516
4140-00-299-6328INTERCHANGEABLE
IMPELLER,FAN,AXIAL
4140-00-300-8111INTERCHANGEABLE
IMPELLER,FAN,AXIAL
4140-00-395-7006INTERCHANGEABLE
IMPELLER,FAN,AXIAL
4140-00-844-3518INTERCHANGEABLE
IMPELLER,FAN,AXIAL
5815-00-920-2495INTERCHANGEABLE
LOCK SLIDE,RIGHT
5905-01-197-7976INTERCHANGEABLE
RESISTOR
03274

Frequently Asked Questions

What is NSN 4140-00-541-4188?

NSN 4140-00-541-4188 is a Impeller,fan,axial, manufactured by Raytheon Company Div Corp, classified under FSC 4140 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4140-00-541-4188?

NSN 4140-00-541-4188 has 2 cross-referenced part numbers: 21B62145 (Raytheon Company Div Corp), 0327-4 (Regal-Beloit Corporation Dba Fasco Group Div Cassville Division).

What NSN replaces 4140-00-541-4188?

There are 7 known substitutes for 4140-00-541-4188: 4140-00-245-0799, 4140-00-299-6328, 4140-00-300-8111 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21B62145?

Key specifications for 21B62145: Material: ALUMINUM OVERALL; Blade Quantity: 4; Attachment Method: SETSCREW; Diameter: 3.000 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4140-00-541-4188 still in active supply?

NSN 4140-00-541-4188 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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