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NSN 4820-00-451-0570

Velocity Fuse

About this product

Second end description is inlet.

Manufacturer part number H555 for national stock number 4820004510570.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-451-0570.

  • MPN or Model

    H555

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.2 lb
  • Thread Class
    3b 1st end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Bonnet Type
    Packing retaining
  • Disk Loading Method
    Spring
  • Valve Discharge Flow Rate
    6.0 gallons per minute
  • Maximum Operating Temp
    275.0 degrees fahrenheit single response
  • Connection Style
    Gasket sea (boss) 1st end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal boss 1st end
  • Features Provided
    Pressure tight outlet side
  • Thready Qty Per Inch (tpi)
    16 2nd end
  • Maximum Operating Pressure
    35.0 pounds per square inch single response
  • Thread Size
    0.750 inches 2nd end
  • Opening Pressure Setting
    48.0 pounds per square inch
  • Outside Diameter Tube Accommodated
    0.500 inches 2nd end
  • Material
    Steel comp 630 flow control device
  • Material Specification
    Qq-s-764, type 303-canceled federal specification 3rd material response seat
  • Media For Which Designed
    Hydraulic fluid, mineral base single response
  • Style Designator
    Err-090
  • 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 4820004510570

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
H555 Ausco,inc.
65651-09106-102 Sikorsky Aircraft Corporation
Stock Check
Availability for this item was last checked on 09/25/24. The quantities and conditions available at the time were:
  • NE: 1383
  • NS: 39