The Freudenberg-NOK OR 3.109 0.139" 90 FKM V901W seal is designed for high-performance applications requiring durability and resistance to aggressive media. This O-ring features a 0.139" cross-section and is made from 90 durometer FKM, ensuring excellent thermal stability and chemical resistance. With a size of 3.109" in diameter, it meets industry standards for reliability and performance. Ideal for use in hydraulic and pneumatic systems, this seal is compatible with various fluids and gases, making it a versatile choice for industrial applications.