The AS568-131 SIMRIZ Z7257 seal features a 1-11/16" inner diameter and a 1-7/8" outer diameter, with a thickness of 3/32". This high-performance seal from Freudenberg-NOK is engineered for reliability in various industrial applications. The SIMRIZ material is known for its superior resistance to chemicals and temperature extremes, making it ideal for hydraulic and pneumatic systems. This seal complies with industry standards, ensuring compatibility and durability in demanding environments. Its robust design guarantees a secure fit, enhancing the efficiency and longevity of your equipment.