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NSN 4820-00-541-4995

Velocity Fuse

About this product

1.250 inches 1st end pipe size accommodated, disk flow control device, exposed spring bonnet type, bonnet attachment method: union.

Manufacturer part number R6309LL for national stock number 4820005414995.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-00-541-4995.

  • MPN or Model

    R6309LL

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Pipe Size Accommodated
    1.250 inches 1st end
  • Flow Control Device
    Disk
  • Bonnet Type
    Exposed spring
  • Bonnet Attachment Method
    Union
  • Disk Loading Method
    Spring
  • Bolt Hole Quantity
    4 2nd end
  • Maximum Operating Temp
    250.0 degrees fahrenheit 1st response
  • Connection Style
    Socket with brazing ring err-100
  • Valve Operation Method
    Automatic
  • Flange Shape
    Round with holes 2nd end
  • Connection Type
    Unthreaded internal pipe 1st end
  • Adjustable Pressure Range
    +33.0/+53.0 pounds per square inch
  • Outside Diameter
    4.500 inches 2nd end
  • Thickness
    0.438 inches 2nd end
  • Bolt Hole Diameter
    0.562 inches 2nd end
  • Bolt Circle Diameter
    3.375 inches 2nd end
  • Flange Face Design
    Plain 2nd end
  • Material
    Nickel alloy flow control device
  • Style Designator
    Angle
  • Furnished Items And Quantity
    1 nut
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 4820005414995

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
R6309LL Dresser, Inc.
1809 Dresser, Inc.
5119-4824-3803 Naval Ship Systems Command
Stock Check
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