PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3534-8-9Piston,valve

King Nutronics Corporation Dba King Nutronics · NSN 4820-01-225-6961 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-225-6961 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-225-6961. Primary manufacturer part number: 3534-8-9.
Features
  • Piston,valve — FSC 4820
  • Valve Type for Which Designed: PRESSURE REDUCING
  • Material: STEEL COMP 303
  • Valve Design Control Activity: 13859
  • Outside Diameter: 1.179 INCHES NOMINAL IN
  • Inside Diameter: 0.391 INCHES NOMINAL IN
  • Valve Model Number for Which Designed: 3534
  • 2 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 construction
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-225-6961, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is King Nutronics Corporation Dba King Nutronics. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-225-6961
Primary Part Number3534-8-9
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerKing Nutronics Corporation Dba King Nutronics
StatusACTIVE
Valve Type for Which DesignedPRESSURE REDUCING
MaterialSTEEL COMP 303
Valve Design Control Activity13859
Outside Diameter1.179 INCHES NOMINAL IN
Inside Diameter0.391 INCHES NOMINAL IN
Valve Model Number for Which Designed3534
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6510-00-105-58061584 INTERCHANGEABLE
Bandage,elastic
3m Company Div Health Care Business
5330-00-286-71754GKW084 INTERCHANGEABLE
Seal,plain Encased
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5950-00-357-141635348 INTERCHANGEABLE
Coil,electrical
Mid-America Aerotech, Llc
1660-01-041-114735348 INTERCHANGEABLE
Poppet
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5315-01-225-69233534-8-17 INTERCHANGEABLE
Key,valve
King Nutronics Corporation Dba King Nutronics
4820-01-225-69383534-8 PART 11 INTERCHANGEABLE
Stem,fluid Valve
King Nutronics Corporation Dba King Nutronics
Cross-Reference Index
Part NumberManufacturer
3534-8 King Nutronics Corporation Dba King Nutronics (USA)
3534-8-9 PRIMARY King Nutronics Corporation Dba King Nutronics (USA)
Related Parts
6510-00-105-5806INTERCHANGEABLE
BANDAGE,ELASTIC
1584
5330-00-286-7175INTERCHANGEABLE
SEAL,PLAIN ENCASED
4GKW084
5950-00-357-1416INTERCHANGEABLE
COIL,ELECTRICAL
35348
1660-01-041-1147INTERCHANGEABLE
POPPET
35348
5315-01-225-6923INTERCHANGEABLE
KEY,VALVE
3534-8-17
4820-01-225-6938INTERCHANGEABLE
STEM,FLUID VALVE
3534-8 PART 11

Frequently Asked Questions

What is NSN 4820-01-225-6961?

NSN 4820-01-225-6961 is a Piston,valve, manufactured by King Nutronics Corporation Dba King Nutronics, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-225-6961?

NSN 4820-01-225-6961 has 2 cross-referenced part numbers: 3534-8 (King Nutronics Corporation Dba King Nutronics), 3534-8-9 (King Nutronics Corporation Dba King Nutronics).

What NSN replaces 4820-01-225-6961?

There are 6 known substitutes for 4820-01-225-6961: 6510-00-105-5806, 5330-00-286-7175, 5950-00-357-1416 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3534-8-9?

Key specifications for 3534-8-9: Overall Length: 3.860 INCHES NOMINAL IN; Valve Type for Which Designed: PRESSURE REDUCING; Material: STEEL COMP 303; Valve Design Control Activity: 13859. 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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