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NSN 4820-00-874-7325

Restrictor Valve

About this product

2.850 in. Lg over-all,0.875 in. Across flats.

Manufacturer part number 1R3642-83 for national stock number 4820008747325.

Datasheet

  • Product description

    Restrictor Check Valve NSN 4820-00-874-7325.

  • MPN or Model

    1R3642-83

  • Schedule B
    8481.30.9000 (Check valves of materials other than copper, iron or steel)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.1 lb
  • Thread Class
    3a 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Connection Style
    Flared (tube) 1st end
  • Connection Type
    Threaded external tube 1st end
  • Mounting Position
    Horizontal
  • Thready Qty Per Inch (tpi)
    20 1st end
  • Maximum Operating Pressure
    3000.0 pounds per square inch single response
  • Thread Size
    0.437 inches 1st end
  • Seat Angle
    37.0 degrees 1st end
  • Outside Diameter Tube Accommodated
    0.250 inches 1st end
  • Material
    Steel comp 303 flow control device
  • Media For Which Designed
    Fuel/oil, hydrocarbon single response
  • Surface Treatment
    Anodize
  • Surface Treatment Specification
    Mil-a-8625, type 2 military specification single treatment response
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unf 1st end
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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 4820008747325

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1R3642-83 Saf Industries Llc
32-69004-83 Boeing Company, The
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