The SIMRIZ SZ501 is engineered for optimal sealing performance with an inner diameter of 11-1/2 inches and an outer diameter of 11-3/4 inches, featuring a thickness of 1/8 inch. This product from Freudenberg-NOK adheres to AS568-277 standards, ensuring compatibility with a wide range of applications. The SZ501 is crafted from high-quality materials that provide exceptional resistance to wear, chemicals, and extreme temperatures. Its precise dimensions guarantee a secure fit, minimizing the risk of leakage and enhancing operational efficiency in hydraulic and pneumatic systems. This seal is a reliable choice for industrial environments requiring robust sealing solutions.