The Freudenberg-NOK N750FM NBR O-Ring features a diameter of 0.210" and a hardness rating of 75 Shore A, making it ideal for various sealing applications. Constructed from high-quality Nitrile Butadiene Rubber (NBR), this O-Ring is designed to withstand oil and fuel exposure, ensuring durability and reliability. With a thickness of 0.725", it meets industry standards for performance and compatibility. This O-Ring is suitable for use in hydraulic and pneumatic systems, providing excellent sealing capabilities in demanding environments.