The Freudenberg-NOK S750FM VMQ O-Ring, with an outer diameter of 4.489 inches and a cross-section of 0.070 inches, is made from high-performance silicone rubber. This O-Ring is engineered for exceptional temperature resistance and flexibility, making it ideal for applications in extreme conditions. It meets industry standards for durability and reliability, ensuring a secure seal in various environments, particularly in food and pharmaceutical applications. This O-Ring is designed to withstand a wide range of chemicals, providing optimal performance in sealing applications.