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NSN 4820-00-871-8426

Valve Seat Insert

About this product

5.750 inches body inside diameter, flat seating surface shape, plastic material, style designator: plain.

Manufacturer part number 6870-18K for national stock number 4820008718426.

Datasheet

  • Product description

    Valve Seat NSN 4820-00-871-8426.

  • MPN or Model

    6870-18K

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    000000 - No Nmfc Freight Description
  • Overall Height
    2.125 inches
  • Body Outside Diameter
    6.875 inches
  • Body Inside Diameter
    5.750 inches
  • Seating Surface Shape
    Flat
  • Material
    Plastic
  • Style Designator
    Plain
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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 4820008718426

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
6870-18K Norriseal
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