PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43302Piston,valve

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4820-01-373-0064 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-373-0064 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-373-0064. Primary manufacturer part number: 43302.
Features
  • Piston,valve — FSC 4820
  • Material Document and Classification: ASTM A276 S21800 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: STEEL CORROSION RESISTING
  • Outside Diameter: 0.549 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE
  • Valve Design Control Activity: 99643
  • Valve Type for Which Designed: CHECK
  • 1 verified cross-reference
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-373-0064, 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. Government technical data includes 6 verified specifications, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-373-0064
Primary Part Number43302
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Material Document and ClassificationASTM A276 S21800 ASSN STD SINGLE MATERIAL RESPONSE
MaterialSTEEL CORROSION RESISTING
Outside Diameter0.549 INCHES NOMINAL IN
Surface TreatmentPASSIVATE
Valve Design Control Activity99643
Valve Type for Which DesignedCHECK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-532-103911069811 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Aviation and Missile Command
5905-01-109-9175 INTERCHANGEABLE
Resistor
3110-01-157-23312498657 INTERCHANGEABLE
Bearing,ball,annular
Parker-Hannifin Corporation Dba Pneutronics
6680-01-248-034943302 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5310-01-258-850143302 INTERCHANGEABLE
Nut,plain,rectangular
Jergens Inc Div Tooling Components Division
4730-01-259-7999 INTERCHANGEABLE
Flange,pipe
4930-01-302-255643302 INTERCHANGEABLE
Wick,oiler,airline
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
43302 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5950-00-532-1039INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
11069811
5905-01-109-9175INTERCHANGEABLE
RESISTOR
3110-01-157-2331INTERCHANGEABLE
BEARING,BALL,ANNULAR
2498657
6680-01-248-0349INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
43302
5310-01-258-8501INTERCHANGEABLE
NUT,PLAIN,RECTANGULAR
43302
4730-01-259-7999INTERCHANGEABLE
FLANGE,PIPE
4930-01-302-2556INTERCHANGEABLE
WICK,OILER,AIRLINE
43302

Frequently Asked Questions

What is NSN 4820-01-373-0064?

NSN 4820-01-373-0064 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 4820-01-373-0064?

NSN 4820-01-373-0064 has 1 cross-referenced part number: 43302 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-373-0064?

There are 7 known substitutes for 4820-01-373-0064: 5950-00-532-1039, 5905-01-109-9175, 3110-01-157-2331 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43302?

Key specifications for 43302: Material Document and Classification: ASTM A276 S21800 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL CORROSION RESISTING; Overall Length: 0.745 INCHES NOMINAL IN; Outside Diameter: 0.549 INCHES NOMINAL IN. 8 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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