PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A65Impeller,pump,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-398-9477 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-398-9477 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-398-9477. Primary manufacturer part number: A65.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Rotation Direction for Which Designed: CLOCKWISE
  • Design Type: SINGLE WIDTH
  • Material: COPPER ALLOY
  • Overall Diameter: 11.000 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-398-9477, 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. Government technical data includes 4 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-398-9477
Primary Part NumberA65
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Rotation Direction for Which DesignedCLOCKWISE
Design TypeSINGLE WIDTH
MaterialCOPPER ALLOY
Overall Diameter11.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3030-00-001-7833AX65 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
3455-00-194-051810170 INTERCHANGEABLE
Cutter,milling,plain
Niagara Cutter Inc
5935-00-201-6033 INTERCHANGEABLE
Adapter,connector
5120-00-516-3482 INTERCHANGEABLE
Tool Set,fastener Installation
5120-00-516-4239 INTERCHANGEABLE
Staking Tool,fastener
5315-00-526-1815A65 INTERCHANGEABLE
Pin,straight,headless
Hartzell Propeller Llc
5330-00-956-7491 INTERCHANGEABLE
Seal,plain Encased
5315-01-100-1238 INTERCHANGEABLE
Pin,straight,threaded
5996-01-435-2537 INTERCHANGEABLE
Amplifier,radio Frequency
3460-01-670-7387A65 INTERCHANGEABLE
Wheel,buffing
Abb Motors & Mechanical Inc Div Abb Motors and Mechanical Inc.
Cross-Reference Index
Part NumberManufacturer
BS4-1624PC6-7-24 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1623PC6-7-24 Circor Naval Solutions Llc Dba Warren Pumps (USA)
A65 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3030-00-001-7833INTERCHANGEABLE
BELT,V
AX65
3455-00-194-0518INTERCHANGEABLE
CUTTER,MILLING,PLAIN
10170
5935-00-201-6033INTERCHANGEABLE
ADAPTER,CONNECTOR
5120-00-516-3482INTERCHANGEABLE
TOOL SET,FASTENER INSTALLATION
5120-00-516-4239INTERCHANGEABLE
STAKING TOOL,FASTENER
5315-00-526-1815INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
A65
5330-00-956-7491INTERCHANGEABLE
SEAL,PLAIN ENCASED
5315-01-100-1238INTERCHANGEABLE
PIN,STRAIGHT,THREADED
5996-01-435-2537INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
3460-01-670-7387INTERCHANGEABLE
WHEEL,BUFFING
A65

Frequently Asked Questions

What is NSN 4320-00-398-9477?

NSN 4320-00-398-9477 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 4320-00-398-9477?

NSN 4320-00-398-9477 has 3 cross-referenced part numbers: BS4-1624PC6-7-24 (Circor Naval Solutions Llc Dba Warren Pumps), BS5-1623PC6-7-24 (Circor Naval Solutions Llc Dba Warren Pumps), A65 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-398-9477?

There are 10 known substitutes for 4320-00-398-9477: 3030-00-001-7833, 3455-00-194-0518, 5935-00-201-6033 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A65?

Key specifications for A65: Rotation Direction for Which Designed: CLOCKWISE; Design Type: SINGLE WIDTH; Overall Width: 1.938 INCHES NOMINAL IN; Material: COPPER ALLOY. 7 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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