PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A266Impeller,pump,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-103-4533 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-103-4533 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-103-4533. Primary manufacturer part number: A266.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • 1 verified cross-reference
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-103-4533, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameImpeller,pump,centrifugal
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersCircor Naval Solutions Llc Dba Warren Pumps (CAGE 63857)
Technical Specifications
ParameterValue
NSN4320-00-103-4533
Primary Part NumberA266
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5945-00-201-78341756222 INTERCHANGEABLE
Flasher,thermal
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-274-2263278-0385-010 INTERCHANGEABLE
Reactor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5962-00-274-2750NCS 1663-1 INTERCHANGEABLE
Microcircuit,linear
Crane Electronics Inc
2805-00-374-4703 INTERCHANGEABLE
Valve,poppet,engine
5935-00-665-7348801137-000 INTERCHANGEABLE
Jack Assembly,telephone
Stromberg-Carlson Corp a Plessey Telecommunications Co
1560-00-869-4147A266-1 INTERCHANGEABLE
Strut,pylon Locking
Marathonnorco Aerospace, Inc.
5340-01-021-2581A266 INTERCHANGEABLE
Bracket,mounting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
A266 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5945-00-201-7834INTERCHANGEABLE
FLASHER,THERMAL
1756222
5950-00-274-2263INTERCHANGEABLE
REACTOR
278-0385-010
5962-00-274-2750INTERCHANGEABLE
MICROCIRCUIT,LINEAR
NCS 1663-1
2805-00-374-4703INTERCHANGEABLE
VALVE,POPPET,ENGINE
5935-00-665-7348INTERCHANGEABLE
JACK ASSEMBLY,TELEPHONE
801137-000
1560-00-869-4147INTERCHANGEABLE
STRUT,PYLON LOCKING
A266-1
5340-01-021-2581INTERCHANGEABLE
BRACKET,MOUNTING
A266

Frequently Asked Questions

What is NSN 4320-00-103-4533?

NSN 4320-00-103-4533 is a Impeller,pump,centrifugal, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-103-4533?

NSN 4320-00-103-4533 has 1 cross-referenced part number: A266 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-103-4533?

There are 7 known substitutes for 4320-00-103-4533: 5945-00-201-7834, 5950-00-274-2263, 5962-00-274-2750 and 4 more. Verify interchangeability with system specifications before substitution.

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