PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84454Seat,valve

Hydro-Aire Aerospace Corp · NSN 4820-00-469-3106 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-469-3106 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-469-3106. Primary manufacturer part number: 84454.
Features
  • Seat,valve — FSC 4820
  • Flange Diameter: 0.690 INCHES NOMINAL IN
  • Seating Surface Shape: FLAT
  • Material: ALUMINUM OVERALL
  • Body Inside Diameter: 0.400 INCHES NOMINAL IN
  • Under Flange Height: 0.195 INCHES NOMINAL IN
  • Seal Accommodation Type: GROOVED
  • Style Designator: PLAIN FLANGED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Aluminum Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-469-3106, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-469-3106
Primary Part Number84454
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Flange Diameter0.690 INCHES NOMINAL IN
Seating Surface ShapeFLAT
MaterialALUMINUM OVERALL
Body Inside Diameter0.400 INCHES NOMINAL IN
Under Flange Height0.195 INCHES NOMINAL IN
Seal Accommodation TypeGROOVED
Style DesignatorPLAIN FLANGED
Body Outside Diameter0.615 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1355-01-041-895484454 INTERCHANGEABLE
Plate,actuator Moun
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
6110-01-722-62624352 INTERCHANGEABLE
Panel,power Bus,circuit Breaker
Navico Group Americas Llc Dba Power Products of Delaware, Llc Div Navico Group, Previously Power Products Llc
Cross-Reference Index
Part NumberManufacturer
84454 PRIMARY Hydro-Aire Aerospace Corp (USA)
Related Parts
1355-01-041-8954INTERCHANGEABLE
PLATE,ACTUATOR MOUN
84454
6110-01-722-6262INTERCHANGEABLE
PANEL,POWER BUS,CIRCUIT BREAKER
4352

Frequently Asked Questions

What is NSN 4820-00-469-3106?

NSN 4820-00-469-3106 is a Seat,valve, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-469-3106?

NSN 4820-00-469-3106 has 1 cross-referenced part number: 84454 (Hydro-Aire Aerospace Corp).

What NSN replaces 4820-00-469-3106?

There are 2 known substitutes for 4820-00-469-3106: 1355-01-041-8954, 6110-01-722-6262. Verify interchangeability with system specifications before substitution.

What are the specifications of 84454?

Key specifications for 84454: Flange Diameter: 0.690 INCHES NOMINAL IN; Special Features: PARTIAL BORE WITH 6 0.125 IN. DIA ORIFICES IN; Seating Surface Shape: FLAT; Material: ALUMINUM OVERALL. 9 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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