PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WU1Valve Plate,hydraulic Motor-Pump

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-218-4183 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-218-4183 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-4183. Primary manufacturer part number: WU1.
Features
  • Valve Plate,hydraulic Motor-Pump — FSC 4320
  • Motor-Pump Design Control Activity: 63857
  • 6 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Plate,hydraulic Motor-Pump, cataloged under National Stock Number 4320-00-218-4183, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN4320-00-218-4183
Primary Part NumberWU1
Item NameValve Plate,hydraulic Motor-Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Motor-Pump Design Control Activity63857
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5340-00-168-0960SJ2 INTERCHANGEABLE
Cover,access
Circor Naval Solutions Llc Dba Warren Pumps
4320-00-177-31253167539PC40T046 INTERCHANGEABLE
Piston and Follower Assembly
Naval Ship Systems Command
4310-00-218-4184WT1 INTERCHANGEABLE
Plate,valve Stop
Circor Naval Solutions Llc Dba Warren Pumps
4810-00-218-4191BS7-2082 PIECES 61 THRU 63 INTERCHANGEABLE
Piston,valve
Circor Naval Solutions Llc Dba Warren Pumps
4320-00-336-8928SK-2 INTERCHANGEABLE
Sleeve,shaft,pump
Circor Naval Solutions Llc Dba Warren Pumps
4820-00-398-9326SF4 INTERCHANGEABLE
Disk,valve
Circor Naval Solutions Llc Dba Warren Pumps
6680-00-819-1717WU1A INTERCHANGEABLE
Power Unit,tachomet
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
Cross-Reference Index
Part NumberManufacturer
BS5-1705PC175 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-1704PC175 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS6-2081PC146 Circor Naval Solutions Llc Dba Warren Pumps (USA)
WU1 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS7-2082PC146 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS7-2082 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5340-00-168-0960INTERCHANGEABLE
COVER,ACCESS
SJ2
4320-00-177-3125INTERCHANGEABLE
PISTON AND FOLLOWER ASSEMBLY
3167539PC40T046
4310-00-218-4184INTERCHANGEABLE
PLATE,VALVE STOP
WT1
4810-00-218-4191INTERCHANGEABLE
PISTON,VALVE
BS7-2082 PIECES 61 THRU 63
4320-00-336-8928INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
SK-2
4820-00-398-9326INTERCHANGEABLE
DISK,VALVE
SF4
6680-00-819-1717INTERCHANGEABLE
POWER UNIT,TACHOMET
WU1A

Frequently Asked Questions

What is NSN 4320-00-218-4183?

NSN 4320-00-218-4183 is a Valve Plate,hydraulic Motor-Pump, 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 4320-00-218-4183?

NSN 4320-00-218-4183 has 6 cross-referenced part numbers: BS5-1705PC175 (Circor Naval Solutions Llc Dba Warren Pumps), BS5-1704PC175 (Circor Naval Solutions Llc Dba Warren Pumps), BS6-2081PC146 (Circor Naval Solutions Llc Dba Warren Pumps), WU1 (Circor Naval Solutions Llc Dba Warren Pumps), BS7-2082PC146 (Circor Naval Solutions Llc Dba Warren Pumps) and 1 more.

What NSN replaces 4320-00-218-4183?

There are 7 known substitutes for 4320-00-218-4183: 5340-00-168-0960, 4320-00-177-3125, 4310-00-218-4184 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WU1?

Key specifications for WU1: Motor-Pump Design Control Activity: 63857. 1 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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