The AS568-279 13" ID x 13-1/4" OD x 1/8" SIMRIZ SZ485 by Freudenberg-NOK is a high-performance O-ring designed for industrial applications. Constructed from durable SIMRIZ material, it offers superior resistance to chemicals and temperature variations. With precise dimensions that meet AS568 standards, this O-ring is ideal for hydraulic and pneumatic systems. The 1/8" thickness ensures effective sealing, making it suitable for high-demand environments. This product is engineered for reliability and performance, ensuring compatibility with a wide range of applications.