The AS568-343 SIMRIZ SZ486 O-Ring is engineered with a 3-3/4" inner diameter and a 4-1/8" outer diameter, featuring a thickness of 3/16". Produced by Freudenberg-NOK, this O-Ring is crafted from high-quality SIMRIZ material, known for its exceptional chemical resistance and thermal stability. This makes it ideal for demanding applications in various industries, including automotive and manufacturing. The O-Ring meets stringent industry standards, ensuring compatibility with numerous systems. Its robust design guarantees a reliable seal, effectively preventing leaks and enhancing system performance.