The AS568-278 O-ring features a 12" inner diameter and a 12-1/4" outer diameter, with a cross-section of 1/8". This SIMRIZ SZ486 O-ring by Freudenberg-NOK is designed for high-performance sealing in demanding applications. Made from durable materials, it ensures longevity and reliability in various environments. This O-ring meets industry standards, making it suitable for a wide range of applications, including hydraulic and pneumatic systems. Its precise dimensions and quality construction provide an effective seal, preventing leaks and ensuring optimal performance.