PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

206-4Seat,valve

Emerson Automation Solutions Final Control Us Lp · NSN 4820-00-440-3604 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-440-3604 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-440-3604. Primary manufacturer part number: 206-4.
Features
  • Seat,valve — FSC 4820
  • Material: RUBBER POLYBUTADIENE OVERALL
  • 6 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Polybutadiene Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-440-3604, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-440-3604
Primary Part Number206-4
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp
StatusACTIVE
MaterialRUBBER POLYBUTADIENE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5130-00-014-1979200-52 INTERCHANGEABLE
Installation Kit,ri
Huck International, Inc. Div Kingston Operations
3110-00-144-8622 INTERCHANGEABLE
Bearing,ball,annular
5905-00-280-0070 INTERCHANGEABLE
Resistor,fixed,wire Wound
5120-00-915-193420052 INTERCHANGEABLE
Crimping Tool,terminal,hand
Te Connectivity Corporation Dba Tyco Electronics Corporation Div Deutsch Products
5310-01-154-044620-052 INTERCHANGEABLE
Locknut
Hess Manufacturing Inc Div Blast-It-All
5950-01-256-96742802770-1 INTERCHANGEABLE
Transformer,power
Inrcore, Llc Div Inrcore
4920-01-297-971220052 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5340-01-374-1349CA802 INTERCHANGEABLE
Stop,mechanical
Altech Corporation
5340-01-465-2505 INTERCHANGEABLE
Handle,manual Control
9515-01-531-97972005.2 INTERCHANGEABLE
Plate,metal
Go Electronics Inc. Dba Control Design Supply
Cross-Reference Index
Part NumberManufacturer
597-208-1886248PC1 Naval Ship Systems Command (USA)
597-208-1886248PC1 Naval Sea Systems Command (USA)
20052 Emerson Automation Solutions Final Control Us Lp (USA)
206-4 PRIMARY Emerson Automation Solutions Final Control Us Lp (USA)
20050PC3 Emerson Automation Solutions Final Control Us Lp (USA)
20049PC3 Emerson Automation Solutions Final Control Us Lp (USA)
Related Parts
5130-00-014-1979INTERCHANGEABLE
INSTALLATION KIT,RI
200-52
3110-00-144-8622INTERCHANGEABLE
BEARING,BALL,ANNULAR
5905-00-280-0070INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5120-00-915-1934INTERCHANGEABLE
CRIMPING TOOL,TERMINAL,HAND
20052
5310-01-154-0446INTERCHANGEABLE
LOCKNUT
20-052
5950-01-256-9674INTERCHANGEABLE
TRANSFORMER,POWER
2802770-1
4920-01-297-9712INTERCHANGEABLE
TEST PROGRAM SET
20052
5340-01-374-1349INTERCHANGEABLE
STOP,MECHANICAL
CA802
5340-01-465-2505INTERCHANGEABLE
HANDLE,MANUAL CONTROL
9515-01-531-9797INTERCHANGEABLE
PLATE,METAL
2005.2
5935-01-559-8980INTERCHANGEABLE
BRACKET,ELECTRICAL CONNECTOR
6515-01-590-0127INTERCHANGEABLE
NEEDLE,ELECTRODE,ELECTROSURGICAL
138025

Frequently Asked Questions

What is NSN 4820-00-440-3604?

NSN 4820-00-440-3604 is a Seat,valve, manufactured by Emerson Automation Solutions Final Control Us Lp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-440-3604?

NSN 4820-00-440-3604 has 6 cross-referenced part numbers: 597-208-1886248PC1 (Naval Ship Systems Command), 597-208-1886248PC1 (Naval Sea Systems Command), 20052 (Emerson Automation Solutions Final Control Us Lp), 206-4 (Emerson Automation Solutions Final Control Us Lp), 20050PC3 (Emerson Automation Solutions Final Control Us Lp) and 1 more.

What NSN replaces 4820-00-440-3604?

There are 12 known substitutes for 4820-00-440-3604: 5130-00-014-1979, 3110-00-144-8622, 5905-00-280-0070 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 206-4?

Key specifications for 206-4: Material: RUBBER POLYBUTADIENE OVERALL. 1 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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