The AS568-345 SIMRIZ SZ484 oil seal offers a 4" inner diameter and a 4-3/8" outer diameter, with a thickness of 3/16". Manufactured by Freudenberg-NOK, this seal is designed for optimal performance in various industrial applications. The SIMRIZ material provides excellent resistance to oils and chemicals, making it suitable for demanding environments. This product adheres to industry standards, ensuring compatibility with a wide range of systems. Its durable construction ensures effective sealing, preventing leaks and maintaining system efficiency.