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NSN 4820-00-066-3908

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, gasket sea (boss) 2nd end connection style, valve operation method: automatic.

Manufacturer part number 1977090 for national stock number 4820000663908.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-066-3908.

  • MPN or Model

    1977090

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.5 lb
  • Thread Class
    3b 2nd end
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Connection Style
    Gasket sea (boss) 2nd end
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal boss 2nd end
  • Thread Size
    0.437 inches 2nd end
  • Seat Angle
    12.0 degrees 1st end
  • Opening Pressure Setting
    70.0 pounds per square inch
  • Outside Diameter Tube Accommodated
    0.250 inches 2nd end
  • Material
    Steel comp 303 seat
  • Style Designator
    Straight through note: to be used for valve bodies of separable sections.
  • Thread Series Designator
    Unjf 1st end
  • Reference Number Differentiating Characteristics
    As differentiated by navord od 42046
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 4820000663908

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
1977090 Navair And Navsea Managed
1977090 Circor Aerospace, Inc.
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