The Freudenberg-NOK O-Ring SI70A4 features a large diameter of 25.940 inches and a cross-section of 0.275 inches, crafted from 70 durometer VMQ (silicone rubber). This O-Ring is engineered for high-performance sealing in demanding applications, providing excellent resistance to extreme temperatures and various chemicals. Its robust design meets industry standards, ensuring reliability in critical environments. Ideal for use in large-scale industrial and automotive applications, this O-Ring effectively prevents leaks and maintains system integrity.