The Dichtomatik AS568-345 seal, measuring 4" inner diameter, 4-3/8" outer diameter, and 3/16" thickness, is crafted from SIMRIZ SZ495 material by Freudenberg-NOK. This seal is designed for high-performance applications, providing excellent resistance to chemicals and extreme temperatures. Its precise dimensions ensure a secure fit in various systems, making it suitable for hydraulic and pneumatic applications. This product adheres to industry standards, ensuring reliability and durability in demanding environments.