The SIMRIZ SZ486 O-Ring, adhering to AS568-345 specifications, features a 4" inner diameter, 4-3/8" outer diameter, and a 3/16" cross-section. This O-ring is crafted from high-performance materials that offer excellent chemical resistance and durability, making it suitable for a variety of applications in the automotive and industrial sectors. Its precise dimensions ensure a perfect fit, providing effective sealing and preventing leaks. This product is ideal for engineers seeking reliable sealing solutions that meet stringent industry standards.