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NSN 4820-01-012-6847

Restrictor Valve

About this product

Weapon system essential.

Manufacturer part number 68B690101-139 for national stock number 4820010126847.

Datasheet

  • Product description

    Restrictor Check Valve NSN 4820-01-012-6847.

  • MPN or Model

    68B690101-139

  • Schedule B
    8481.30.2090 (Check valves of steel)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.2 lb
  • Thread Class
    3a all ends
  • Thread Direction
    Right-hand all ends
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Connection Style
    B49a gasket seal (tube) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube all ends
  • Mounting Position
    Horizontal or vertical
  • Thready Qty Per Inch (tpi)
    20 all ends
  • Thread Size
    0.718 inches all ends
  • Criticality Code Justification
    Feat
  • Material
    Stainless steel
  • Surface Treatment
    Passivate
  • Surface Treatment Specification
    Qq-p-35 federal specification single treatment response
  • Style Designator
    Straight thru
  • Thread Series Designator
    Uns 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 4820010126847

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
68B690101-139 Boeing Company, The
5590-139 Boeing Company, The
7M845-3 Boeing Company, The
5590-139 Boeing Company, The
Stock Check
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