The Freudenberg-NOK O-Ring SI70A4 is a high-performance sealing solution made from 70 durometer VMQ (silicone rubber). With a diameter of 0.644 inches and a cross-section of 0.087 inches, this O-Ring is designed for reliable sealing in various applications. It offers excellent resistance to temperature extremes and is compliant with industry standards, ensuring durability and longevity. Ideal for use in automotive, aerospace, and industrial applications, this O-Ring provides a secure fit and effective sealing against fluids and gases.