The AS568-342 SIMRIZ SZ495 oil seal features a 3-5/8" inner diameter and a 4" outer diameter, with a thickness of 3/16". This high-quality product from Freudenberg-NOK is designed for reliability in various sealing applications. The SIMRIZ material is known for its superior chemical resistance, making it ideal for use in harsh conditions. This seal complies with industry standards, ensuring compatibility with numerous systems. Its durable construction ensures effective sealing, preventing leaks and maintaining system performance in hydraulic and pneumatic applications.