PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20376Seat,valve

Twg Canada Consolidated Inc · NSN 4820-01-203-8259 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-203-8259 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-203-8259. Primary manufacturer part number: 20376.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Twg Canada Consolidated Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-203-8259, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Twg Canada Consolidated Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTwg Canada Consolidated Inc (CAGE 38335)
Technical Specifications
ParameterValue
NSN4820-01-203-8259
Primary Part Number20376
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTwg Canada Consolidated Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-611-091320376 INTERCHANGEABLE
Relay,electromagnetic
Raytheon Company Dba Raytheon
3455-01-041-881650-10619 INTERCHANGEABLE
Reamer,machine
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5330-01-137-694399120376 INTERCHANGEABLE
Gasket
Alfa Laval Inc
Cross-Reference Index
Part NumberManufacturer
20376 PRIMARY Twg Canada Consolidated Inc (CAN)
Related Parts
5945-00-611-0913INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
20376
3455-01-041-8816INTERCHANGEABLE
REAMER,MACHINE
50-10619
5330-01-137-6943INTERCHANGEABLE
GASKET
99120376

Frequently Asked Questions

What is NSN 4820-01-203-8259?

NSN 4820-01-203-8259 is a Seat,valve, manufactured by Twg Canada Consolidated Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-203-8259?

NSN 4820-01-203-8259 has 1 cross-referenced part number: 20376 (Twg Canada Consolidated Inc).

What NSN replaces 4820-01-203-8259?

There are 3 known substitutes for 4820-01-203-8259: 5945-00-611-0913, 3455-01-041-8816, 5330-01-137-6943. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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