PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43312Piston,valve

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4820-01-373-7595 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-373-7595 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-373-7595. Primary manufacturer part number: 43312.
Features
  • Piston,valve — FSC 4820
  • Material: STEEL CORROSION RESISTING
  • Surface Treatment: PASSIVATE
  • Valve Type for Which Designed: CHECK
  • Valve Design Control Activity: 99643
  • Valve Model Number for Which Designed: 70409-1
  • Material Document and Classification: ASTM A276 S21800 ASSN STD SINGLE MATERIAL RESPONSE
  • 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 4820-01-373-7595, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-373-7595
Primary Part Number43312
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Surface TreatmentPASSIVATE
Valve Type for Which DesignedCHECK
Valve Design Control Activity99643
Valve Model Number for Which Designed70409-1
Material Document and ClassificationASTM A276 S21800 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-100-058543312 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3110-00-155-629686FT78 INTERCHANGEABLE
Bearing,ball,annular
Oshkosh Defense Llc
3230-01-045-915943312 INTERCHANGEABLE
Bit,router
Porter Cable/delta
5120-01-398-7818 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
43312 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
3110-00-100-0585INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
43312
3110-00-155-6296INTERCHANGEABLE
BEARING,BALL,ANNULAR
86FT78
3230-01-045-9159INTERCHANGEABLE
BIT,ROUTER
43312
5120-01-398-7818INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 4820-01-373-7595?

NSN 4820-01-373-7595 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 4820-01-373-7595?

NSN 4820-01-373-7595 has 1 cross-referenced part number: 43312 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4820-01-373-7595?

There are 4 known substitutes for 4820-01-373-7595: 3110-00-100-0585, 3110-00-155-6296, 3230-01-045-9159 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43312?

Key specifications for 43312: Material: STEEL CORROSION RESISTING; Surface Treatment: PASSIVATE; Valve Type for Which Designed: CHECK; Valve Design Control Activity: 99643. 7 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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