o-ring

An O-ring is a circular, ring-shaped seal made from flexible materials like rubber or silicone, designed to create a tight seal between two mating surfaces. Its cross-section is typically round, which allows it to compress and fill gaps, preventing the leakage of fluids or gases. O-rings are widely used in various applications, including automotive, aerospace, plumbing, and industrial machinery, due to their simplicity, versatility, and cost-effectiveness. They provide reliable sealing in static and dynamic applications, helping to maintain pressure and prevent contamination.