PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8393Piston,valve

Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect · NSN 4820-01-281-4487 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-281-4487 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-281-4487. Primary manufacturer part number: 8393.
Features
  • Piston,valve — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-281-4487, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect. This item has 5 commercial cross-references from 2 manufacturers, 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)
ManufacturersAir Dry Co of America, Llc (CAGE 01496); Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect (CAGE 99447)
Technical Specifications
ParameterValue
NSN4820-01-281-4487
Primary Part Number8393
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5306-00-534-45148393 INTERCHANGEABLE
Bolt,internal Wrenching
Triumph Engine Control Systems Llc
5960-00-937-3748 INTERCHANGEABLE
Electron Tube
3030-01-084-455917475 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
4820-01-281-44076532-37-6 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4820-01-281-45388398-2 INTERCHANGEABLE
Disk,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4820-01-281-74258401 INTERCHANGEABLE
Seat Assembly,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5962-01-395-9777 INTERCHANGEABLE
Microcircuit,digital
6520-01-579-29698393 INTERCHANGEABLE
Abutment Kit,implant,dental
Nobel Biocare Usa, Llc
Cross-Reference Index
Part NumberManufacturer
6532-37-6 ITEM 20 Air Dry Co of America, Llc (USA)
6532-37-6 ITEM 20 Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect (USA)
8393 Air Dry Co of America, Llc (USA)
6532-37-6 Air Dry Co of America, Llc (USA)
8393 PRIMARY Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect (USA)
Related Parts
5306-00-534-4514INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
8393
5960-00-937-3748INTERCHANGEABLE
ELECTRON TUBE
3030-01-084-4559INTERCHANGEABLE
BELT,V
17475
4820-01-281-4407INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
6532-37-6
4820-01-281-4538INTERCHANGEABLE
DISK,VALVE
8398-2
4820-01-281-7425INTERCHANGEABLE
SEAT ASSEMBLY,VALVE
8401
5962-01-395-9777INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
6520-01-579-2969INTERCHANGEABLE
ABUTMENT KIT,IMPLANT,DENTAL
8393

Frequently Asked Questions

What is NSN 4820-01-281-4487?

NSN 4820-01-281-4487 is a Piston,valve, manufactured by Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-281-4487?

NSN 4820-01-281-4487 has 5 cross-referenced part numbers: 6532-37-6 ITEM 20 (Air Dry Co of America, Llc), 6532-37-6 ITEM 20 (Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect), 8393 (Air Dry Co of America, Llc), 6532-37-6 (Air Dry Co of America, Llc), 8393 (Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect).

What NSN replaces 4820-01-281-4487?

There are 8 known substitutes for 4820-01-281-4487: 5306-00-534-4514, 5960-00-937-3748, 3030-01-084-4559 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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