PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43173Piston,valve

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4820-01-373-9592 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-373-9592 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-373-9592. Primary manufacturer part number: 43173.
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 4820-01-373-9592, 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
NSN4820-01-373-9592
Primary Part Number43173
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
5950-00-803-46489175618 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
5999-00-907-369443-173 INTERCHANGEABLE
Shielding Gasket,electronic
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5340-01-371-73474317-3 INTERCHANGEABLE
Plunger,detent
Tech Resources, Inc
4820-01-466-409643173 INTERCHANGEABLE
Valve,check
Eaton Corporation Dba Eaton Inoac
2040-01-676-540043173-106 INTERCHANGEABLE
Stern Section,keel,boat
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
2040-01-676-540243173-107 INTERCHANGEABLE
Stern Section,keel,boat
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
2040-01-676-559143173-108 INTERCHANGEABLE
Stern Section,keel,boat
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
5905-01-724-5218 INTERCHANGEABLE
Resistor,adjustable
Cross-Reference Index
Part NumberManufacturer
43173 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5950-00-803-4648INTERCHANGEABLE
TRANSFORMER,POWER
9175618
5999-00-907-3694INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
43-173
5340-01-371-7347INTERCHANGEABLE
PLUNGER,DETENT
4317-3
4820-01-466-4096INTERCHANGEABLE
VALVE,CHECK
43173
2040-01-676-5400INTERCHANGEABLE
STERN SECTION,KEEL,BOAT
43173-106
2040-01-676-5402INTERCHANGEABLE
STERN SECTION,KEEL,BOAT
43173-107
2040-01-676-5591INTERCHANGEABLE
STERN SECTION,KEEL,BOAT
43173-108
5905-01-724-5218INTERCHANGEABLE
RESISTOR,ADJUSTABLE

Frequently Asked Questions

What is NSN 4820-01-373-9592?

NSN 4820-01-373-9592 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 4820-01-373-9592?

NSN 4820-01-373-9592 has 1 cross-referenced part number: 43173 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-373-9592?

There are 8 known substitutes for 4820-01-373-9592: 5950-00-803-4648, 5999-00-907-3694, 5340-01-371-7347 and 5 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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