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NSN 4820-01-376-9852

Velocity Fuse

About this product

0.500 inches all ends pipe size accommodated, disk flow control device, spring disk loading method, valve discharge flow rate: 434.0 cubic feet per minute.

Manufacturer part number 203578940M for national stock number 4820013769852.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-376-9852.

  • MPN or Model

    203578940M

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Pipe Size Accommodated
    0.500 inches all ends
  • Flow Control Device
    Disk
  • Disk Loading Method
    Spring
  • Valve Discharge Flow Rate
    434.0 cubic feet per minute
  • Maximum Operating Temp
    165.0 degrees fahrenheit single response
  • End Application
    Seawolf class ssn
  • Connection Style
    Socket err-100
  • Valve Operation Method
    Automatic
  • Connection Type
    Unthreaded internal pipe all ends
  • Adjustable Pressure Range
    +4001.0/+5499.0 pounds per square inch
  • Maximum Operating Pressure
    6000.0 pounds per square inch single response
  • Criticality Code Justification
    Zzzy
  • Opening Pressure Setting
    4900.0 pounds per square inch
  • Material
    Nickel alloy flow control device
  • Material Specification
    Qq-n-281 federal specification single material response stem
  • Media For Which Designed
    Nitrogen, gaseous single response
  • Style Designator
    Err-090
  • Reference Number Differentiating Characteristics
    Cleaned in accordance with mil-i-52211
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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 4820013769852

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
203578940M Anderson Greenwood Lp
211038573 Electric Boat Corporation
203578940M CD S Naval Inventory Control Point
203578940MCP Naval Inventory Control Point
211038573CP Naval Inventory Control Point
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