PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SF18Cover,valve

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-00-218-4432 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-218-4432 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-218-4432. Primary manufacturer part number: SF18.
Features
  • Cover,valve — FSC 4320
  • General Characteristics Item Description: ALUMINUM; 3.719 IN. OD; 0.312 IN. ID; 0.281 IN.H O/A IN
  • 1 verified cross-reference
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cover,valve, cataloged under National Stock Number 4320-00-218-4432, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-218-4432
Primary Part NumberSF18
Item NameCover,valve
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
General Characteristics Item DescriptionALUMINUM; 3.719 IN. OD; 0.312 IN. ID; 0.281 IN.H O/A IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3130-00-108-0575SF18 INTERCHANGEABLE
Bearing Unit,ball
Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co
3455-00-313-655835182 INTERCHANGEABLE
Cutter,milling,end
Niagara Cutter Inc
Cross-Reference Index
Part NumberManufacturer
SF18 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3130-00-108-0575INTERCHANGEABLE
BEARING UNIT,BALL
SF18
3455-00-313-6558INTERCHANGEABLE
CUTTER,MILLING,END
35182

Frequently Asked Questions

What is NSN 4320-00-218-4432?

NSN 4320-00-218-4432 is a Cover,valve, 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 4320-00-218-4432?

NSN 4320-00-218-4432 has 1 cross-referenced part number: SF18 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-00-218-4432?

There are 2 known substitutes for 4320-00-218-4432: 3130-00-108-0575, 3455-00-313-6558. Verify interchangeability with system specifications before substitution.

What are the specifications of SF18?

Key specifications for SF18: General Characteristics Item Description: ALUMINUM; 3.719 IN. OD; 0.312 IN. ID; 0.281 IN.H O/A IN. 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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