PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A738Impeller,pump,centrifugal

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-01-186-0956 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-186-0956 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-186-0956. Primary manufacturer part number: A738.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Overall Diameter: 10.251 INCHES NOMINAL IN
  • Material: NICKEL ALLOY
  • 5 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 Nickel Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-186-0956, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-186-0956
Primary Part NumberA738
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Overall Diameter10.251 INCHES NOMINAL IN
MaterialNICKEL ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-01-186-3588656C0402J030A INTERCHANGEABLE
Shaft,straight
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-186-3593661B0147H024A INTERCHANGEABLE
Deflector,dirt and Liquid
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-186-3707A737 INTERCHANGEABLE
Impeller,pump,centrifugal
Circor Naval Solutions Llc Dba Warren Pumps
6515-01-297-68726515-FS-791-1478 INTERCHANGEABLE
Corset,thoracolumbar
U S Dept of Veterans Affairs
Cross-Reference Index
Part NumberManufacturer
999D0562 Circor Naval Solutions Llc Dba Warren Pumps (USA)
A738 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
657D1465 10.125 Circor Naval Solutions Llc Dba Warren Pumps (USA)
657D1466 10.125IN DIA Circor Naval Solutions Llc Dba Warren Pumps (USA)
PL-999D0562 PIECE 27 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3040-01-186-3588INTERCHANGEABLE
SHAFT,STRAIGHT
656C0402J030A
4320-01-186-3593INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
661B0147H024A
4320-01-186-3707INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A737
6515-01-297-6872INTERCHANGEABLE
CORSET,THORACOLUMBAR
6515-FS-791-1478

Frequently Asked Questions

What is NSN 4320-01-186-0956?

NSN 4320-01-186-0956 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 4320-01-186-0956?

NSN 4320-01-186-0956 has 5 cross-referenced part numbers: 999D0562 (Circor Naval Solutions Llc Dba Warren Pumps), A738 (Circor Naval Solutions Llc Dba Warren Pumps), 657D1465 10.125 (Circor Naval Solutions Llc Dba Warren Pumps), 657D1466 10.125IN DIA (Circor Naval Solutions Llc Dba Warren Pumps), PL-999D0562 PIECE 27 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-01-186-0956?

There are 4 known substitutes for 4320-01-186-0956: 3040-01-186-3588, 4320-01-186-3593, 4320-01-186-3707 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A738?

Key specifications for A738: Overall Diameter: 10.251 INCHES NOMINAL IN; Material: NICKEL ALLOY. 2 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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