Ethylene Propylene 75 Durometer O-Ring, Low Compression (E0740-75) | Product Series

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Ethylene Propylene 75 Durometer O-Ring, Low Compression (E0740-75)

Ethylene Propylene 75 Durometer O-Ring, Low Compression (E0740-75)

Parker's ethylene propylene rubber (EPM, EPR, EPDM) O-rings are compatible with solvents and other chemicals.

Technical Specifications

  • Inside Diameter: 0.029 to 25.940 inch
  • Width: 0.04 to 0.275 inch
  • Polymer Material Options: Ethylene Propylene Rubber (EPM, EPR, EPDM)
  • Trade Name: E740, E70
  • Thermal Application Type: Low Temperature (< -30°F)
  • Durometer: 75 Shore A
  • Minimum Operating Temperature: -70 °F
  • Maximum Operating Temperature: 250 °F
  • For Fluid Type: Water, Steam
  • Industry: General
  • Specifications Met: None, ISO 10993, USP VI (87), NUPIC
  • Region of Origin: North America
  • Internally Lubricated: No
  • Color: Black
Safety Warning

Full Product Description

Parker's 75 durometer black EPDM, E0740-75 is a  terpolymer of ethylene and propylene with a diene third monomer used for cross linking.  This is particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use fluids having a glycol base.  This is the most common material for nuclear applications.

Temperature range: -70°F to 250°F (-57°C to 121°C)

Chemical resistance
• Hot water and steam up to 400 (204°C)
• Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (149°C)
• Many organic and inorganic acids
• Cleaning agents, sodium and potassium alkalis
• Phosphate-ester based hydraulic fluids (HFD-R)
• Silicone oil and grease
• Many polar solvents (alcohols, ketones, esters)
• Ozone, aging and weather resistant

Not compatible with:
• Mineral oil products (oils, greases and fuels)


Used for low compression set and radiation resistance

*Custom sizes and coatings/markings are available upon request. Contact Parker O-Ring Division at 859-269-2351 for design and pricing assistance.

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