PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

UA-18Cylinder Sleeve

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-01-174-1431 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-174-1431 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-174-1431. Primary manufacturer part number: UA-18.
Features
  • Cylinder Sleeve — FSC 4320
  • Material: IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101
  • 3 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Applications requiring Iron Cast Uns F11401 or Iron Cast Uns F11701 or Iron Cast Uns F12101 or Iron Cast Uns F12401 or Iron Cast Uns F12801 or Iron Cast Uns F13101 or Iron Cast Uns F13501 or Iron Cast Uns F13801 or Iron Cast Uns F14101 construction
General Description

The Cylinder Sleeve, cataloged under National Stock Number 4320-01-174-1431, 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 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
NSN4320-01-174-1431
Primary Part NumberUA-18
Item NameCylinder Sleeve
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
MaterialIRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4320-01-171-7359WL-28 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4191VR-22 INTERCHANGEABLE
Piston Follower,pump
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4192VU-8 INTERCHANGEABLE
Piston Follower,pump
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4646YG-30 INTERCHANGEABLE
Valve Assembly,pump
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4647UF-6 INTERCHANGEABLE
Lever Assembly,pump
Circor Naval Solutions Llc Dba Warren Pumps
4820-01-173-8362BS8-2326-117 INTERCHANGEABLE
Seat,valve
Euramco Safety Inc
4320-01-174-1434SA-47 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-174-1435SB-34 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4810-01-209-2350BS8-2326-116/118 INTERCHANGEABLE
Stem,fluid Valve
Euramco Safety Inc
4320-01-211-5578BS8-2326-104 INTERCHANGEABLE
Cylinder Sleeve
Euramco Safety Inc
Cross-Reference Index
Part NumberManufacturer
BS8-2326 Circor Naval Solutions Llc Dba Warren Pumps (USA)
UA-18 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS8-2326 PIECE 2 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
4320-01-171-7359INTERCHANGEABLE
CONNECTING ROD,PISTON
WL-28
4320-01-173-4191INTERCHANGEABLE
PISTON FOLLOWER,PUMP
VR-22
4320-01-173-4192INTERCHANGEABLE
PISTON FOLLOWER,PUMP
VU-8
4320-01-173-4646INTERCHANGEABLE
VALVE ASSEMBLY,PUMP
YG-30
4320-01-173-4647INTERCHANGEABLE
LEVER ASSEMBLY,PUMP
UF-6
4820-01-173-8362INTERCHANGEABLE
SEAT,VALVE
BS8-2326-117
4320-01-174-1434INTERCHANGEABLE
CONNECTING ROD,PISTON
SA-47
4320-01-174-1435INTERCHANGEABLE
CONNECTING ROD,PISTON
SB-34
4810-01-209-2350INTERCHANGEABLE
STEM,FLUID VALVE
BS8-2326-116/118
4320-01-211-5578INTERCHANGEABLE
CYLINDER SLEEVE
BS8-2326-104

Frequently Asked Questions

What is NSN 4320-01-174-1431?

NSN 4320-01-174-1431 is a Cylinder Sleeve, 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 4320-01-174-1431?

NSN 4320-01-174-1431 has 3 cross-referenced part numbers: BS8-2326 (Circor Naval Solutions Llc Dba Warren Pumps), UA-18 (Circor Naval Solutions Llc Dba Warren Pumps), BS8-2326 PIECE 2 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-01-174-1431?

There are 10 known substitutes for 4320-01-174-1431: 4320-01-171-7359, 4320-01-173-4191, 4320-01-173-4192 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of UA-18?

Key specifications for UA-18: Material: IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101. 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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