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NSN 4820-00-485-7841

Restrictor Valve

About this product

The end connection identified above as the second end is the valve inlet.

Manufacturer part number A51H209-3 for national stock number 4820004857841.

Datasheet

  • Product description

    Restrictor Check Valve NSN 4820-00-485-7841.

  • MPN or Model

    A51H209-3

  • 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
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    275.0 degrees fahrenheit single response
  • Connection Style
    Gasket seal (boss) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal boss 1st end
  • Mounting Position
    Horizontal or vertical
  • Thready Qty Per Inch (tpi)
    20 1st end
  • Maximum Operating Pressure
    3000.0 pounds per square inch single response
  • Thread Size
    0.437 inches 2nd end
  • Outside Diameter Tube Accommodated
    0.250 inches 2nd end
  • Material
    Aluminum alloy 518.0 body
  • Surface Treatment
    Anodize
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unjf 1st 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 4820004857841

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
A51H209-3 Northrop Grumman Systems Corporation
46130 Eaton Corporation
A51H9209-3 Northrop Grumman Systems Corporation
A51H209-3 Northrop Grumman Systems Corporation
Stock Check
Availability for this item was last checked on 06/22/22. The quantities and conditions available at the time were:
  • NE: 1
  • AR: 1
  • NS: 15
  • SV: 1