The Freudenberg-NOK OR 1.350" 90 HNBR H901B seal is designed for high-performance applications requiring durability and resistance to harsh environments. Made from high-quality HNBR material, this O-ring features a 0.210" cross-section and is rated for 90 durometer hardness, ensuring excellent sealing capabilities. With dimensions of 1.350" in inner diameter, it is suitable for various industrial applications, including hydraulic and pneumatic systems. This seal complies with industry standards, making it a reliable choice for engineers and maintenance professionals.