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NSN 4820-00-242-1698

Valve Seat Insert

About this product

Flat seating surface shape, steel material, ams 5643 assn standard single material response material specification, fsc application data: valve, aircraft air conditioning system.

Manufacturer part number 122890 for national stock number 4820002421698.

Datasheet

  • Product description

    Valve Seat NSN 4820-00-242-1698.

  • MPN or Model

    122890

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Thread Class
    3a single threaded portion
  • Seating Surface Shape
    Flat
  • Material
    Steel
  • Material Specification
    Ams 5643 assn standard single material response
  • Fsc Application Data
    Valve, aircraft air conditioning system
Valve Seat

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

Mechanic Bill explains Valve Seat Insert

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NSN 4820002421698

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
122890 Transdigm, Inc.
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