PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34509Seat,valve

Bourns Inc · NSN 4820-01-588-7768 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-588-7768 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-588-7768. Primary manufacturer part number: 34509.
Features
  • Seat,valve — FSC 4820
  • Style Designator: PLAIN THREADED
  • Material: STEEL CORROSION RESISTING OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Bourns Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-588-7768, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Bourns Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-588-7768
Primary Part Number34509
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerBourns Inc
StatusACTIVE
Style DesignatorPLAIN THREADED
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5365-00-508-1479 INTERCHANGEABLE
Plug,machine Thread
5120-01-066-588034509 INTERCHANGEABLE
Punch,drive Pin
Wilton Corp Wilton Tool Div
5915-01-232-731134509 INTERCHANGEABLE
Filter,band Pass
K&l Microwave Llc
Cross-Reference Index
Part NumberManufacturer
34509 PRIMARY Bourns Inc (USA)
34509 Cat Pumps Corp (USA)
Related Parts
5365-00-508-1479INTERCHANGEABLE
PLUG,MACHINE THREAD
5120-01-066-5880INTERCHANGEABLE
PUNCH,DRIVE PIN
34509
5915-01-232-7311INTERCHANGEABLE
FILTER,BAND PASS
34509

Frequently Asked Questions

What is NSN 4820-01-588-7768?

NSN 4820-01-588-7768 is a Seat,valve, manufactured by Bourns Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-588-7768?

NSN 4820-01-588-7768 has 2 cross-referenced part numbers: 34509 (Bourns Inc), 34509 (Cat Pumps Corp).

What NSN replaces 4820-01-588-7768?

There are 3 known substitutes for 4820-01-588-7768: 5365-00-508-1479, 5120-01-066-5880, 5915-01-232-7311. Verify interchangeability with system specifications before substitution.

What are the specifications of 34509?

Key specifications for 34509: Style Designator: PLAIN THREADED; Material: STEEL CORROSION RESISTING OVERALL; End Item Identification: 7034, 7036, OR 7037 HIGH PRESSURE RELIEF VALVE. 3 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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