The AS568-464 17 1/2" ID x 18" OD x 1/4" SIMRIZ SZ486 O-ring from Freudenberg-NOK is designed for optimal sealing in various industrial applications. Crafted from durable SIMRIZ material, this O-ring provides excellent resistance to chemicals and temperature variations. With an inner diameter of 17.5 inches and an outer diameter of 18 inches, it conforms to AS568 standards, ensuring a perfect fit. The 1/4" thickness enhances its sealing capabilities, making it suitable for hydraulic and pneumatic systems, while its compliance with industry standards guarantees reliability and durability.