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Butyl 70 Durometer O-Ring, General-Purpose (B0318-70 GP)

Brand: Parker Hannifin

Parker's butyl rubber (IIR) O-rings are compatible with solvents and other chemicals.

Parker's Butyl (isobutylene, isoprene rubber, IIR) has a very low permeability rate and good electrical properties.
Features
  • Heat resistance
  • Up to approximately 121°C (250°F)
  • Cold flexibility
  • Down to approximately -59°C (-75°F )
  • Chemical resistance
  • Hot water and steam up to 121°C (250°F)
  • Brake fluids with glycol base (Dot 3 & 4)
  • Many acids (see Fluid Compatibility Tables in Section VII)
  • Salt solutions
  • Polar solvents, (e.g. alcohols, ketones and esters)
  • Poly-glycol based hydraulic fluids (HFC fluids) and phosphate-ester bases (HFD-R fluids)
  • Silicone oil and grease
  • Ozone, aging and weather resistant
  • Not compatible with:
    • Mineral oil and grease
    • Fuels
    • Chlorinated hydrocarbons

Specifications

Approvals & Certifications

  • MIL/Aero

Color

  • Black

Fluid Compatibility

  • Synthetic Hydraulic Fluids

Internally Lubed

  • No

Markets

  • General

Maximum Working Temperature

  • 250°F

Meets Certifications

  • AMS3238

Minimum Working Temperature

  • -75°F

Nominal Hardness Range

  • 70

Polymer Family

  • Butyl Rubber (IIR)

Region of Origin

  • North America

Thermal Application

  • Low Temperature (< -30°F)
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