PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A243Impeller,pump,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-369-0091 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-369-0091 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-369-0091. Primary manufacturer part number: A243.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Blade Quantity: 5
  • Material: COPPER ALLOY
  • Rotation Direction for Which Designed: COUNTERCLOCKWISE
  • Blade Type: BACKWARD CURVE
  • Design Type: SINGLE WIDTH
  • Overall Diameter: 8.000 INCHES NOMINAL IN
  • 6 verified cross-references
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 4320-00-369-0091, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 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: Active.

Technical Specifications
ParameterValue
NSN4320-00-369-0091
Primary Part NumberA243
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Blade Quantity5
MaterialCOPPER ALLOY
Rotation Direction for Which DesignedCOUNTERCLOCKWISE
Blade TypeBACKWARD CURVE
Design TypeSINGLE WIDTH
Overall Diameter8.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4420-00-287-3646 INTERCHANGEABLE
Heater,fluid,industrial
5950-00-466-1589278-0359-010 INTERCHANGEABLE
Transformer,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5999-00-475-11149191210-1 INTERCHANGEABLE
Clip,electrical
Us Army Aviation and Missile Command
1095-00-986-9288A243 INTERCHANGEABLE
Panel,armament Sele
Lockheed Martin Corp
3040-01-050-1834A2-43 INTERCHANGEABLE
Shaft,straight
Roller Bearing Co of America, Inc Div Pic Design
5120-01-426-7963 INTERCHANGEABLE
Flat Base Cylinder
5306-01-499-1694A24-3 INTERCHANGEABLE
Bolt,machine
Crane Carrier Company, Llc
Cross-Reference Index
Part NumberManufacturer
A243 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
5100-4700-470171ALT2PC66 Naval Ship Systems Command (USA)
R236PC66 Circor Naval Solutions Llc Dba Warren Pumps (USA)
5100-4700-470178ALT1PC66 Naval Ship Systems Command (USA)
4700-3168314PC66 Naval Ship Systems Command (USA)
N11771 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
4420-00-287-3646INTERCHANGEABLE
HEATER,FLUID,INDUSTRIAL
5950-00-466-1589INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
278-0359-010
5999-00-475-1114INTERCHANGEABLE
CLIP,ELECTRICAL
9191210-1
1095-00-986-9288INTERCHANGEABLE
PANEL,ARMAMENT SELE
A243
3040-01-050-1834INTERCHANGEABLE
SHAFT,STRAIGHT
A2-43
5120-01-426-7963INTERCHANGEABLE
FLAT BASE CYLINDER
5306-01-499-1694INTERCHANGEABLE
BOLT,MACHINE
A24-3

Frequently Asked Questions

What is NSN 4320-00-369-0091?

NSN 4320-00-369-0091 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 4320-00-369-0091?

NSN 4320-00-369-0091 has 6 cross-referenced part numbers: A243 (Circor Naval Solutions Llc Dba Warren Pumps), 5100-4700-470171ALT2PC66 (Naval Ship Systems Command), R236PC66 (Circor Naval Solutions Llc Dba Warren Pumps), 5100-4700-470178ALT1PC66 (Naval Ship Systems Command), 4700-3168314PC66 (Naval Ship Systems Command) and 1 more.

What NSN replaces 4320-00-369-0091?

There are 7 known substitutes for 4320-00-369-0091: 4420-00-287-3646, 5950-00-466-1589, 5999-00-475-1114 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A243?

Key specifications for A243: Blade Quantity: 5; Material: COPPER ALLOY; Rotation Direction for Which Designed: COUNTERCLOCKWISE; Blade Type: BACKWARD CURVE. 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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