NSN 4820-00-529-5496

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, 20.0 gallons per minute valve discharge flow rate, connection style: gasket sea (boss) 1st end.

Manufacturer part number 313690-1 for national stock number 4820005295496.


  • Product description

    Safety Relief Valve NSN 4820-00-529-5496.

  • 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.)
    0.6 lb
  • Thread Class
    3b 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
  • Disk Loading Method
  • Valve Discharge Flow Rate
    20.0 gallons per minute
  • Connection Style
    Gasket sea (boss) 1st end
  • Valve Operation Method
  • Connection Type
    Threaded internal boss 1st end
  • Mounting Facility
    Threaded fastener
  • Features Provided
    Valve stem lock shield and pressure tight outlet side
  • Thready Qty Per Inch (tpi)
    12 1st end
  • Thread Size
    1.500 inches 1st end
  • Opening Pressure Setting
    50.0 pounds per square inch
  • Material
    Aluminum alloy stem
  • Surface Treatment
  • Surface Treatment Specification
    Mil-a-8625, type 2 military specification single treatment response
  • Style Designator
    Straight thru
  • Thread Series Designator
    Un 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 4820005295496

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
313690-1 Hydro-aire, Inc.
313690-1 Skyspares Parts, Inc
314500-5 Hydro-aire, Inc.
314500-5 The Boeing Company
313690-1 The Boeing Company
10-20153 The Boeing Company
10-2749-1 The Boeing Company
Stock Check
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