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NSN 4820-00-163-5745

Velocity Fuse

About this product

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

Manufacturer part number 636B-4-1/4-2 for national stock number 4820001635745.

Picture of NSN 4820-00-163-5745

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-163-5745.

  • MPN or Model

    636B-4-1/4-2

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.6 lb
  • Pipe Size Accommodated
    0.250 inches 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    225.0 degrees fahrenheit single response
  • Connection Style
    Plain, optional en (pipe) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal pipe 1st end
  • Features Provided
    Pressure tight outlet side
  • Adjustable Pressure Range
    +115.0 to 250.0 pounds per square inch
  • Maximum Operating Pressure
    3100.0 pounds per square inch single response
  • Thread Size
    0.250 inches 2nd end
  • Opening Pressure Setting
    180.0 pounds per square inch
  • Material
    Steel comp 303 flow control device and plastic polytetrafluoroethylene flow control device
  • Material Specification
    Qq-s-764, type303-canceled federal specification 1st material response flow control device
  • Media For Which Designed
    Air 1st response
  • Style Designator
    Angle
  • Thread Series Designator
    Anpt 2nd end
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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 4820001635745

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
636B-4-1/4-2 Parker-hannifin Corporation
636B4 1-4 2-180P Teledyne Industries Inc
Stock Check
Availability for this item was last checked on 08/22/23. The quantities and conditions available at the time were:
  • NS: 1