PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43111Piston,valve

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4820-01-373-9593 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-373-9593 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-373-9593. Primary manufacturer part number: 43111.
Features
  • Piston,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-373-9593, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersEaton Aerospace Llc Dba Eaton Aerospace Jackson (CAGE 99643)
Technical Specifications
ParameterValue
NSN4820-01-373-9593
Primary Part Number43111
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5310-00-016-034243111 INTERCHANGEABLE
Washer,flat
Sypris Electronics, Llc
3455-00-250-0770 INTERCHANGEABLE
Cutter,milling,end
4820-00-417-11201/2IN 351T INTERCHANGEABLE
Valve,ball
Portland Valve Llc
5340-00-674-761443-1-1-1 INTERCHANGEABLE
Latch Set,rim
Southco Inc
5950-00-907-7293141554-01 INTERCHANGEABLE
Transformer,power
Ge Aviation Systems Llc
5930-01-318-553543111 INTERCHANGEABLE
Switch Assembly
Parker-Hannifin Corporation Div Gas Turbine Fuel Systems
5310-01-399-2171N43111 INTERCHANGEABLE
Nut,plain,hexagon
Leslie Controls, Inc. Dba Leslie Controls Inc
5998-01-544-77644311-1 INTERCHANGEABLE
Interface Unit,auto
Omnitron Systems Technology, Inc. Dba Omnitron Systems Technology Inc
Cross-Reference Index
Part NumberManufacturer
43111 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5310-00-016-0342INTERCHANGEABLE
WASHER,FLAT
43111
3455-00-250-0770INTERCHANGEABLE
CUTTER,MILLING,END
4820-00-417-1120INTERCHANGEABLE
VALVE,BALL
1/2IN 351T
5340-00-674-7614INTERCHANGEABLE
LATCH SET,RIM
43-1-1-1
5950-00-907-7293INTERCHANGEABLE
TRANSFORMER,POWER
141554-01
5930-01-318-5535INTERCHANGEABLE
SWITCH ASSEMBLY
43111
5310-01-399-2171INTERCHANGEABLE
NUT,PLAIN,HEXAGON
N43111
5998-01-544-7764INTERCHANGEABLE
INTERFACE UNIT,AUTO
4311-1

Frequently Asked Questions

What is NSN 4820-01-373-9593?

NSN 4820-01-373-9593 is a Piston,valve, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-373-9593?

NSN 4820-01-373-9593 has 1 cross-referenced part number: 43111 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-373-9593?

There are 8 known substitutes for 4820-01-373-9593: 5310-00-016-0342, 3455-00-250-0770, 4820-00-417-1120 and 5 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com