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NSN 4820-00-167-3741

Velocity Fuse

About this product

Valve size 0.250 in..

Manufacturer part number 559T-4D-45 for national stock number 4820001673741.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-167-3741.

  • MPN or Model

    559T-4D-45

  • 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
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.437 inches 1st end
  • Opening Pressure Setting
    45.0 pounds per square inch
  • Outside Diameter Tube Accommodated
    0.250 inches 1st end
  • Material
    Steel comp 303se
  • Material Specification
    Qq-s-764, type 303se-canceled federal specification single material response
  • Media For Which Designed
    Hydrogen 3rd response
  • Style Designator
    Straight through note: to be used for valve bodies of one section only.
  • Thread Series Designator
    Unjf 1st end
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

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NSN 4820001673741

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
559T-4D-45 Circor Aerospace, Inc.
2187647 Lockheed Martin Corp
2187647-4 Lockheed Martin Corp
Stock Check
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