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NSN 4820-00-288-6935

Velocity Fuse

About this product

Poppet flow control device, spring disk loading method, 6 1st end bolt holes, valve operation method: automatic.

Manufacturer part number DD421S61-54PC18 for national stock number 4820002886935.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-288-6935.

  • MPN or Model

    DD421S61-54PC18

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Flow Control Device
    Poppet
  • Disk Loading Method
    Spring
  • Bolt Hole Quantity
    6 1st end
  • Maximum Operating Temp
    425.0 degrees fahrenheit single response
  • Valve Operation Method
    Automatic
  • Flange Shape
    Round with holes 1st end
  • Connection Type
    Flange 1st end
  • Adjustable Pressure Range
    +4.5/+5.5 pounds per square inch
  • Maximum Operating Pressure
    100.0 pounds per square inch single response
  • Outside Diameter
    5.562 inches 1st end
  • Thickness
    0.500 inches 1st end
  • Bolt Hole Diameter
    0.562 inches 1st end
  • Bolt Circle Diameter
    4.438 inches 1st end
  • Flange Face Design
    Plain 1st end
  • Material
    Nickel alloy stem
  • Media For Which Designed
    Steam single response
  • Style Designator
    Angle
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 4820002886935

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
DD421S61-54PC18 Naval Sea Systems Command
1709F Atwood & Morrill Co. Inc.
1709F General Electric Co
5544110-18 General Electric Co
W5544110PC18 General Electric Co
1709F General Electric Co
5544110-18 General Electric Co
W5544110PC18 General Electric Co
DD421S61-54PC18 Naval Ship Systems Command
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