The AS568-039 2-3/4" ID x 2-7/8" OD x 1/16" SIMRIZ Z7257 O-ring from Freudenberg-NOK is designed for effective sealing in various applications. With an inner diameter of 2-3/4 inches and an outer diameter of 2-7/8 inches, this O-ring is constructed from high-quality SIMRIZ material, ensuring durability and chemical resistance. The 1/16" thickness provides a secure seal, making it suitable for hydraulic and pneumatic systems. This product meets the AS568 standard, ensuring reliability and performance in demanding environments.