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NSN 4820-01-449-1979

Valve Seat Insert

About this product

1.318 inches body inside diameter, 20 single threaded portion thready qty per inch (tpi), flat seating surface shape, material: nickel alloy .

Manufacturer part number 803-4384536-61XX-85 for national stock number 4820014491979.

Datasheet

  • Product description

    Valve Seat NSN 4820-01-449-1979.

  • MPN or Model

    803-4384536-61XX-85

  • 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.)
    0.1 lb
  • Thread Class
    3a single threaded portion
  • Err Default
    0.266 inches single threaded portion
  • Overall Height
    0.375 inches
  • Body Inside Diameter
    1.318 inches
  • End Application
    Nimitz class cvn
  • Thready Qty Per Inch (tpi)
    20 single threaded portion
  • Thread Size
    1.8125 inches single threaded portion
  • Seating Surface Shape
    Flat
  • Material
    Nickel alloy
  • Material Specification
    Astm b164 assn standard single material response or astm a494 gr -30c assn standard single material response or qq-n-281 federal specification single material response
  • Style Designator
    B5 plain threaded
  • Thread Series Designator
    Un single threaded portion
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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 4820014491979

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
803-4384536-61XX-85 Naval Ship Systems Command
803-4384536 PC 85 Naval Ship Systems Command
4384536 Naval Ship Systems Command
4384536 Naval Ship Systems Command
803-4384536-61XX-85 Naval Ship Systems Command
803-4384536 PC 85 Naval Ship Systems Command
4384536 Naval Ship Systems Command
803-4384536-61XX-85 Naval Ship Systems Command
803-4384536 PC 85 Naval Ship Systems Command
4384536 Naval Ship Systems Command
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