PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8129-500Impeller,pump,centrifugal

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-01-205-8793 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-205-8793 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-205-8793. Primary manufacturer part number: 8129-500.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Rotation Direction for Which Designed: COUNTERCLOCKWISE
  • Material: NICKEL ALLOY
  • Overall Diameter: 5.375 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Air & Liquid Systems Corporation Dba Buffalo Pumps
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Nickel Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-205-8793, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-205-8793
Primary Part Number8129-500
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
MaterialNICKEL ALLOY
Overall Diameter5.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4320-01-205-87948129-000-NICU-5 3/8 INTERCHANGEABLE
Impeller,pump,centrifugal
Air & Liquid Systems Corporation Dba Buffalo Pumps
Cross-Reference Index
Part NumberManufacturer
8129-500 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA11954 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
CA11954-3A Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
4320-01-205-8794INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
8129-000-NICU-5 3/8

Frequently Asked Questions

What is NSN 4320-01-205-8793?

NSN 4320-01-205-8793 is a Impeller,pump,centrifugal, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-205-8793?

NSN 4320-01-205-8793 has 3 cross-referenced part numbers: 8129-500 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA11954 (Air & Liquid Systems Corporation Dba Buffalo Pumps), CA11954-3A (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-01-205-8793?

There is 1 known substitute for 4320-01-205-8793: 4320-01-205-8794. Verify interchangeability with system specifications before substitution.

What are the specifications of 8129-500?

Key specifications for 8129-500: Rotation Direction for Which Designed: COUNTERCLOCKWISE; Material: NICKEL ALLOY; Overall Diameter: 5.375 INCHES NOMINAL IN. 3 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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