The Freudenberg-NOK 0.210" 70 VMQ O-Ring SI70A4 is a high-quality sealing solution designed for industrial applications. With a durometer of 70, this O-ring is crafted from VMQ (vinyl methyl silicone), known for its excellent thermal and chemical resistance. The 0.210-inch diameter ensures it meets AS568 specifications, making it versatile for various systems. Ideal for use in environments with fluctuating temperatures and pressures, this O-ring provides a dependable seal, enhancing the performance and longevity of machinery and equipment.