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NSN 4820-00-208-7109

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, plain (tube) 1st end connection style, valve operation method: automatic.

Manufacturer part number D559T-4D-1 for national stock number 4820002087109.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-208-7109.

  • MPN or Model

    D559T-4D-1

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • 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
  • Maximum Operating Temp
    280.0 degrees fahrenheit single response
  • Connection Style
    Plain (tube) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded external tube 1st end
  • Adjustable Pressure Range
    +0.5/+2.5 pounds per square inch
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.437 inches 1st end
  • Opening Pressure Setting
    1.0 pounds per square inch
  • Outside Diameter Tube Accommodated
    0.250 inches 1st end
  • Material
    Steel comp 303
  • Material Specification
    66 federal standard single material response
  • Media For Which Designed
    Nitrogen, gaseous 5th response
  • Style Designator
    Straight thru
  • Thread Series Designator
    Unjf 1st end
  • Furnished Items And Quantity
    1 deflector cap
More from these suppliers
Safety Relief Valve

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Mechanic Bill explains Velocity Fuse

Pricing and Availability

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NSN 4820002087109

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
D559T-4D-1 Circor Aerospace, Inc.
Stock Check
Availability for this item was last checked on 04/25/23. The quantities and conditions available at the time were:
  • NS: 1
  • NE: 1