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NSN 4820-01-159-4523

Restrictor Valve

About this product

Installation of jam nut and torque to 10 inch pounds;flight safety critical.

Manufacturer part number A51H9221-5 for national stock number 4820011594523.

Datasheet

  • Product description

    Restrictor Check Valve NSN 4820-01-159-4523.

  • MPN or Model

    A51H9221-5

  • Schedule B
    8481.30.9000 (Check valves of materials other than copper, iron or steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Thread Class
    3b 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Connection Style
    Gasket seal (boss) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal boss 1st end
  • Mounting Position
    Horizontal
  • Thready Qty Per Inch (tpi)
    18 1st end
  • Thread Size
    0.562 inches 2nd end
  • Criticality Code Justification
    Feat
  • Material
    Aluminum alloy
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unjs 2nd end
More from these suppliers
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 4820011594523

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
A51H9221-5 Northrop Grumman Systems Corporation
6125-8 Pneudraulics, Inc.
A51H9221-5 Northrop Grumman Systems Corporation
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