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NSN 4820-00-782-9624

Restrictor Valve

About this product

Poppet flow control device, spring disk loading method, flareless all ends connection style, valve operation method: automatic.

Manufacturer part number 4R111-20 for national stock number 4820007829624.

Datasheet

  • Product description

    Restrictor Check Valve NSN 4820-00-782-9624.

  • MPN or Model

    4R111-20

  • Schedule B
    8481.30.9000 (Check valves of materials other than copper, iron or steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a all ends
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    275.0 degrees fahrenheit 2nd response
  • Connection Style
    Flareless all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube all ends
  • Mounting Position
    Horizontal or vertical
  • Maximum Operating Pressure
    3000.0 pounds per square inch single response
  • Thread Size
    0.437 inches all ends
  • Seat Angle
    12.0 degrees all ends
  • Material
    Aluminum alloy 2024 body
  • Material Specification
    Qq-a-22516, alloy 2024 federal specification single material response body
  • Media For Which Designed
    Hydraulic fluid, petroleum base single response
  • Surface Treatment
    Enamel
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unf all ends
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Restrictor Check Valve

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Mechanic Bill explains Restrictor Valve

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NSN 4820007829624

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
4R111-20 Allen Aircraft Products Inc
1R5444-20 Saf Industries Llc
215-32320-20 Triumph Aerostructures, Llc
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