The Freudenberg-NOK EPDM O-Ring, with a diameter of 0.139" and a hardness rating of 70 Shore A, is engineered for superior sealing in various applications. Constructed from Ethylene Propylene Diene Monomer (EPDM), this O-Ring is highly resistant to heat, ozone, and weathering, making it suitable for outdoor and high-temperature environments. Its precise dimensions ensure compatibility with standard sealing grooves, providing effective sealing against liquids and gases. This product adheres to industry standards, ensuring reliability and longevity in diverse applications.