The AS568-316 O-ring, with a 7/8" inner diameter and a 1-1/4" outer diameter, is 3/16" thick. This SIMRIZ Z7257 O-ring from Freudenberg-NOK is engineered for optimal sealing performance in various applications. Constructed from high-quality materials, it offers excellent resistance to wear, chemicals, and temperature fluctuations. This O-ring complies with industry standards, ensuring reliability in hydraulic and pneumatic systems. Its precise sizing guarantees a snug fit, making it ideal for critical sealing tasks.