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NSN 4820-01-256-8554

Relief Valve

About this product

Zzzy criticality code justification, clean in accordance with mil-i-52211 reference number differentiating characteristics, .

Manufacturer part number 20270-00787B for national stock number 4820012568554.

Datasheet

  • Product description

    Pressure And Temperature Relief Valve NSN 4820-01-256-8554.

  • MPN or Model

    20270-00787B

  • Schedule B
    8481.40.0000 (Safety or relief valves)
  • NMF (National Motor Freight)
    127220 - Pressure Reg/red/relief Valves NOI
  • Unit Weight (Est.)
    0.1 lb
  • Criticality Code Justification
    Zzzy
  • Reference Number Differentiating Characteristics
    Clean in accordance with mil-i-52211
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Pressure And Temperature Relief Valve

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

Mechanic Bill explains Relief Valve

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NSN 4820012568554

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
20270-00787B Pentair Valves & Controls Us Lp
20270-00787B Anderson Greenwood Lp
D42UU-07S-1/2-3/4 Dante Valve Company Inc
D42UU-07 1/2 X 3/4 Danco Valve Company
20270-00787BCP Naval Inventory Control Point
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