PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A121Impeller,pump,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-01-209-2918 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-209-2918 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-209-2918. Primary manufacturer part number: A121.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • 3 verified cross-references
  • 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 4320-01-209-2918, 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 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 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
NSN4320-01-209-2918
Primary Part NumberA121
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 11
5660-00-224-8663A121-12-4-5-14R INTERCHANGEABLE
Barbed Wire
American Society for Testing and Materials Dba Astm International
5945-00-259-0505 INTERCHANGEABLE
Solenoid,electrical
5306-00-483-7244A121 INTERCHANGEABLE
Bolt,shoulder
Hartzell Propeller Llc
5950-00-494-4934278-2129-030 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4730-00-542-4266SAE J513 4 010109B INTERCHANGEABLE
Plug,tube Fitting,threaded
Sae International Dba Sae International
5660-00-596-2384 INTERCHANGEABLE
Barbed Wire
3455-01-042-4841 INTERCHANGEABLE
File,rotary
4210-01-129-5230101325 INTERCHANGEABLE
Swivel,right and Left Hand
Akron Brass Company
3040-01-210-1315J49 INTERCHANGEABLE
Shaft,shouldered
Circor Naval Solutions Llc Dba Warren Pumps
5355-01-434-2819A/121 INTERCHANGEABLE
Knob
O. E. M. Controls, Inc. Dba Oem Controls Inc
Cross-Reference Index
Part NumberManufacturer
BS5-1638 PIECE 28 Circor Naval Solutions Llc Dba Warren Pumps (USA)
A121 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1636 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5660-00-224-8663INTERCHANGEABLE
BARBED WIRE
A121-12-4-5-14R
5945-00-259-0505INTERCHANGEABLE
SOLENOID,ELECTRICAL
5306-00-483-7244INTERCHANGEABLE
BOLT,SHOULDER
A121
5950-00-494-4934INTERCHANGEABLE
COIL,RADIO FREQUENCY
278-2129-030
4730-00-542-4266INTERCHANGEABLE
PLUG,TUBE FITTING,THREADED
SAE J513 4 010109B
5660-00-596-2384INTERCHANGEABLE
BARBED WIRE
3455-01-042-4841INTERCHANGEABLE
FILE,ROTARY
4210-01-129-5230INTERCHANGEABLE
SWIVEL,RIGHT AND LEFT HAND
101325
3040-01-210-1315INTERCHANGEABLE
SHAFT,SHOULDERED
J49
5355-01-434-2819INTERCHANGEABLE
KNOB
A/121
1240-01-612-4319INTERCHANGEABLE
MOUNT,SIGHT
A121

Frequently Asked Questions

What is NSN 4320-01-209-2918?

NSN 4320-01-209-2918 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 4320-01-209-2918?

NSN 4320-01-209-2918 has 3 cross-referenced part numbers: BS5-1638 PIECE 28 (Circor Naval Solutions Llc Dba Warren Pumps), A121 (Circor Naval Solutions Llc Dba Warren Pumps), BS5-1636 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-01-209-2918?

There are 11 known substitutes for 4320-01-209-2918: 5660-00-224-8663, 5945-00-259-0505, 5306-00-483-7244 and 8 more. Verify interchangeability with system specifications before substitution.

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