The Freudenberg-NOK O-Ring features a 0.139" cross-section and a 2.609" inner diameter, made from high-quality NBR (Nitrile Butadiene Rubber) with a 70 durometer hardness. This O-Ring is designed for reliable sealing in various applications, ensuring durability and resistance to oils and fuels. It meets industry standards for performance and compatibility, making it suitable for a wide range of systems. Ideal for use in hydraulic and pneumatic applications, this O-Ring provides excellent sealing capabilities under pressure. Its robust construction ensures longevity and effectiveness in demanding environments.