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NSN 4820-01-366-9567

Valve Seat Insert

About this product

Zzzy criticality code justification, nickel alloy material, qq-n-281 federal specification single material response material specification, reference number differentiating characteristics: item that supports a level 1 or subsafe critical system that has undergone quality assurance during the acquisition.

Manufacturer part number 255580 PIECE 16 for national stock number 4820013669567.

Datasheet

  • Product description

    Valve Seat NSN 4820-01-366-9567.

  • MPN or Model

    255580 PIECE 16

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Unit Weight (Est.)
    0.5 lb
  • Criticality Code Justification
    Zzzy
  • Material
    Nickel alloy
  • Material Specification
    Qq-n-281 federal specification single material response
  • Reference Number Differentiating Characteristics
    Item that supports a level 1 or subsafe critical system that has undergone quality assurance during the acquisition
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 4820013669567

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
255580 PIECE 16 Huntington Ingalls Incorporated
255580 PIECE 16Q3 Naval Inventory Control Point
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