NSN 4820-00-072-8510

Velocity Fuse

About this product

Pop-off type.

Manufacturer part number 2904768-1 for national stock number 4820000728510.


  • Product description

    Safety Relief Valve NSN 4820-00-072-8510.

  • MPN or Model


  • 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 Direction
    Right-hand 1st end
  • Flow Control Device
  • Disk Loading Method
  • Maximum Operating Temp
    250.0 degrees fahrenheit single response
  • Connection Style
    Plain (pipe) 1st end
  • Valve Operation Method
  • Connection Type
    Threaded external pipe 1st end
  • Features Provided
    Valve stem lock shield
  • Adjustable Pressure Range
    +2.5 to 5.9 pounds per square inch
  • Maximum Operating Pressure
    200.0 pounds per square inch single response
  • Thread Size
    0.125 inches 1st end
  • Opening Pressure Setting
    4.0 pounds per square inch
  • Material
    Steel comp 316 bodysteel comp 316 flow control device and rubber butadiene-acrylonitrile class nbr flow control devicesteel comp 316 seat
  • Media For Which Designed
    Hydrogen 5th response
  • Surface Treatment
  • Style Designator
    Straight through note: to be used for valve bodies of one section only.
  • Thread Series Designator
    Npt 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 4820000728510

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
2904768-1 Naval Sea Systems Command
559T1-1M-4 Circor Aerospace, Inc.
773372-1 Lockheed Martin Corporation
10516717 Us Army Ardec Rdecom
559T-1M-4 Circor Aerospace, Inc.
4820000728510 E.c.a Etablissement
4820000728510 E.c.a Etablissement Central
Stock Check
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