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NSN 4820-01-190-0353

Velocity Fuse

About this product

Disk flow control device, spring disk loading method, g9 plain, optional en (pipe) all ends connection style, valve operation method: automatic.

Manufacturer part number 637B-2-1/4-2 for national stock number 4820011900353.

Datasheet

  • Product description

    Safety Relief Valve NSN 4820-01-190-0353.

  • MPN or Model

    637B-2-1/4-2

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.8 lb
  • Thread Direction
    Right-hand 1st end
  • Flow Control Device
    Disk
  • Disk Loading Method
    Spring
  • Maximum Operating Temp
    225.0 degrees fahrenheit single response
  • Connection Style
    G9 plain, optional en (pipe) all ends
  • Valve Operation Method
    Automatic
  • Connection Type
    Threaded internal pipe all ends
  • Maximum Operating Pressure
    3100.0 pounds per square inch single response
  • Thread Size
    0.250 inches 1st end
  • Opening Pressure Setting
    35.0 pounds per square inch
  • Material
    Copper alloy body
  • Media For Which Designed
    Liquid, ingested 2nd response
  • Style Designator
    Err-090
  • Thread Series Designator
    Npt 1st end
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 4820011900353

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
637B-2-1/4-2 Teledyne Reynolds, Inc.
4706K252 Mcmaster-carr Supply Company
Stock Check
Availability for this item was last checked on 09/09/21. The quantities and conditions available at the time were:
  • NS: 1
  • NE: 26