The Freudenberg-NOK AS568-450 O-Ring features a 10 1/2" inner diameter and an 11" outer diameter, with a thickness of 1/4". Made from high-quality NBR (BUNA) 70 material, this black O-Ring is designed for durability and resistance to various chemicals and temperatures. It meets industry standards for sealing applications, ensuring reliable performance in both static and dynamic environments. Ideal for use in hydraulic and pneumatic systems, this O-Ring is compatible with a wide range of fluids and gases, making it a versatile choice for industrial applications.