NSN 4820-00-003-9553

Restrictor Valve

About this product

Between 0.099 inches and unable to decode unable to decode, poppet flow control device, spring disk loading method, connection style: flareless 2nd end.

Manufacturer part number 4G14390-101A for national stock number 4820000039553.


  • Product description

    Restrictor Check Valve NSN 4820-00-003-9553.

  • MPN or Model


  • Schedule B
    8481.30.2090 (Check valves of steel)
  • NMF (National Motor Freight)
    051080 - Faucets, Bibcocks, Gates Valves
  • Unit Weight (Est.)
    0.2 lb
  • Thread Class
    3a 1st end
  • Thread Direction
    Right-hand 1st end
  • Unable To Decode
    Between 0.099 inches and unable to decode
  • Flow Control Device
  • Disk Loading Method
  • Maximum Operating Temp
    250.0 degrees fahrenheit single response
  • Connection Style
    Flareless 2nd end
  • Valve Operation Method
  • Connection Type
    Threaded external tube 2nd end
  • Mounting Position
    Horizontal or vertical
  • Thready Qty Per Inch (tpi)
    18 2nd end
  • Maximum Operating Pressure
    3000.0 pounds per square inch single response
  • Thread Size
    0.750 inches 1st end
  • Seat Angle
    12.0 degrees 2nd end
  • Outside Diameter Tube Accommodated
    0.500 inches 1st end
  • Material
    Stainless steel seat
  • Media For Which Designed
    Oil, hydraulic single response
  • 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 4820000039553

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
4G14390-101A Lockheed Martin Corporation
Stock Check
Availability for this item was last checked on 01/30/23. The quantities and conditions available at the time were:
  • NE: 1