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NSN 4820-00-992-9485

Valve Seat Insert

About this product

Between 4.2510 inches and 4.2515 inches flange diameter, between 0.672 inches and 0.678 inches seat radius, 0.500 inches flange seat to disk end height, under flange height: 2.250 inches .

Manufacturer part number 101C428AA1 for national stock number 4820009929485.

Datasheet

  • Product description

    Valve Seat NSN 4820-00-992-9485.

  • MPN or Model

    101C428AA1

  • Schedule B
    8481.90.9090 (Parts of taps, cocks, valves and similar appliances, nesoi)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    5 lb
  • Flange Diameter
    Between 4.2510 inches and 4.2515 inches
  • Body Outside Diameter
    Between 3.747 inches and 3.748 inches
  • Seat Radius
    Between 0.672 inches and 0.678 inches
  • Flange Seat To Disk End Height
    0.500 inches
  • Under Flange Height
    2.250 inches
  • Seating Surface Shape
    Radial
  • Body Stepped Inside Diameter
    2.680 inches second step
  • Material
    Steel body
  • Material Specification
    Mil-s-853 military specification single material response body
  • Style Designator
    Plain flanged
  • Fsc Application Data
    Turbine, steam
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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 4820009929485

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
101C428AA1 General Electric Co
101C428AAPC1 General Electric Co
101C428AA1 General Electric Co
101C428AAPC1 General Electric Co
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