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NSN 4820-01-256-8744

Velocity Fuse

About this product

Disk flow control device, spring disk loading method, 128.0 cubic feet per minute valve discharge flow rate, maximum operating pressure: 400.0 pounds per square inch single response.

Manufacturer part number UU-1551-T for national stock number 4820012568744.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-256-8744.

  • MPN or Model

    UU-1551-T

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Flow Control Device
    Disk
  • Disk Loading Method
    Spring
  • Valve Discharge Flow Rate
    128.0 cubic feet per minute
  • Maximum Operating Pressure
    400.0 pounds per square inch single response
  • Criticality Code Justification
    Zzzy
  • Opening Pressure Setting
    80.0 pounds per square inch
  • Material
    Nickel alloy 400 stem
  • Material Specification
    Qq-n-281 federal specification single material response stem
  • Media For Which Designed
    Oxygen, liquid single response
  • Style Designator
    Err-090
  • Reference Number Differentiating Characteristics
    Requires special cleaning and packaging iaw mil-c-52211, for oxygen/nitrogen/hydrogen service
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 4820012568744

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
UU-1551-T Pentair Valves & Controls Us Lp
D841-4050 Gas Equipment Engineering
9955.K 5IM,TYPE Gas Equipment Engineering
UU-1551-T Anderson Greenwood Lp
D841-4050CP Naval Inventory Control Point
UU-1551-TCP Naval Inventory Control Point
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