The AS568-454 12 1/2" ID x 13" OD x 1/4" SIMRIZ Z7257 O-ring by Freudenberg-NOK is designed for high-performance sealing in industrial applications. Constructed from premium SIMRIZ material, it offers exceptional resistance to chemicals and temperature fluctuations. With an inner diameter of 12 1/2 inches and an outer diameter of 13 inches, this O-ring fits perfectly in hydraulic and pneumatic systems. The 1/4" thickness provides a strong seal, making it ideal for high-pressure applications. This product meets rigorous industry standards, ensuring reliability and compatibility across various applications.