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Hydrogenated Nitrile 70 Durometer O-Ring, Low Temperature (KA158-70)

Brand: Parker Hannifin

Parker's hydrogenated nitrile KA158-70 (HNBR) a hydrogenation of nitrile rubber (NBR), has superior mechanical characteristics, particularly high strength, resulting in increased strength and durability. 

Shore A diamterr of 70 and black in color, KA158-70 is formulated for low temperature resistance to -40°C (-40°F), without compromising the high temperature capability.
Features
  • Heat resistance - Up to 149°C (300°F) with excursions up to 163°C (325°F) 
  • Cold flexibility - Down to approximately -40°C (-40°F) Chemical resistance 
  • Aliphatic hydrocarbons 
  • Vegetable and animal fats and oils 
  • HFA, HFB and HFC hydraulic fluids 
  • Dilute acids, bases and salt solutions at moderate temperatures 
  • Rerigerant HFO1234yf 
  • Ozone, aging and weathering

Specifications

Approvals & Certifications

  • NORSOK

Color

  • Black

Fluid Compatibility

  • Water/Steam

Internally Lubed

  • No

Markets

  • General

Maximum Working Temperature (°F)

  • 300° F

Meets Certifications

  • ISO 23936-2 10 % H₂S

Minimum Working Temperature (°F)

  • -40° F

Nominal Hardness

  • 70

Nominal Hardness Range

  • 70

Polymer Family

  • Hydrogenated Nitrile (HNBR, HSN)

Region of Origin

  • North America

Thermal Application (°F)

  • Low Temperature (< -30° F)

Not Compatible With
  • Chlorinated Hydrocarbons 
  • Polar Solvents (Keytones, Esters and Ethers) 
  • Strong Acids *Custom Sizes and Coatings/Markings are available upon request.
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