PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21571Impeller,fan,axial

Alter Harry Co the Div of T E C · NSN 4140-01-224-7662 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-01-224-7662 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-224-7662. Primary manufacturer part number: 21571.
Features
  • Impeller,fan,axial — FSC 4140
  • Material: ALUMINUM OVERALL
  • Rotation Direction for Which Designed: CLOCKWISE
  • Style Designator: ROUNDED TIP
  • Blade Quantity: 5
  • Diameter: 8.000 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Alter Harry Co the Div of T E C
Applications
  • Applications requiring Aluminum Overall construction
General Description

The Impeller,fan,axial, cataloged under National Stock Number 4140-01-224-7662, 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 Alter Harry Co the Div of T E C. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4140-01-224-7662
Primary Part Number21571
Item NameImpeller,fan,axial
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerAlter Harry Co the Div of T E C
StatusACTIVE
MaterialALUMINUM OVERALL
Rotation Direction for Which DesignedCLOCKWISE
Style DesignatorROUNDED TIP
Blade Quantity5
Diameter8.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-01-028-22562157-1 INTERCHANGEABLE
Connector,multiple,fluid Pressur
Transdigm Inc Div Adelwiggins Group
5998-01-080-468321573 INTERCHANGEABLE
Circuit Card Assembly
United States Department of the Navy Dba Naval Undersea Warfare Ctr Div
5331-01-096-3793 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
21571 PRIMARY Alter Harry Co the Div of T E C (USA)
Related Parts
4730-01-028-2256INTERCHANGEABLE
CONNECTOR,MULTIPLE,FLUID PRESSUR
2157-1
5998-01-080-4683INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21573
5331-01-096-3793INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 4140-01-224-7662?

NSN 4140-01-224-7662 is a Impeller,fan,axial, manufactured by Alter Harry Co the Div of T E C, classified under FSC 4140 (No Item Name Available). Status: active.

What are the part numbers for NSN 4140-01-224-7662?

NSN 4140-01-224-7662 has 1 cross-referenced part number: 21571 (Alter Harry Co the Div of T E C).

What NSN replaces 4140-01-224-7662?

There are 3 known substitutes for 4140-01-224-7662: 4730-01-028-2256, 5998-01-080-4683, 5331-01-096-3793. Verify interchangeability with system specifications before substitution.

What are the specifications of 21571?

Key specifications for 21571: Material: ALUMINUM OVERALL; Rotation Direction for Which Designed: CLOCKWISE; End Item Identification: MULTI-PURPOSES,HARRY ALTER CO MODELS VARIED; Style Designator: ROUNDED TIP. 6 total characteristics are documented in the Federal Logistics Information System.

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