The Freudenberg-NOK N901W O-Ring is a robust sealing solution made from NBR (Nitrile Butadiene Rubber). With a diameter of 5.100 inches and a thickness of 0.275 inches, this O-Ring is designed to provide excellent resistance to oils and fuels, making it suitable for a wide range of industrial and automotive applications. Its hardness rating of 90 Shore A ensures durability and effective sealing under pressure. This O-Ring complies with industry standards, ensuring compatibility with various systems and applications.