The Freudenberg-NOK 0.103" 70 VMQ O-Ring SI70A4 is engineered for high-performance sealing, featuring a diameter of 5.487 inches. This O-ring is made from VMQ (silicone rubber), providing excellent resistance to temperature variations and chemical exposure. With a hardness rating of 70 Shore A, it ensures a reliable seal in various environments. Compliant with industry standards, this O-ring is suitable for automotive, aerospace, and industrial applications. Its precise dimensions and durable construction make it an ideal choice for preventing leaks in critical systems.