The Freudenberg-NOK 0.139" 70 VMQ S701B O-Ring is a high-quality sealing solution with a diameter of 3.609 inches. Made from VMQ (silicone) material, it offers exceptional resistance to heat and chemicals, making it ideal for various industrial applications. With a hardness rating of 70 Shore A, this O-Ring ensures a secure seal in automotive and manufacturing environments. It complies with industry standards, providing reliability and performance in critical sealing applications, making it a preferred choice for engineers.