A gasket washer ring, also known as a sealing washer or an O-ring, is a mechanical component designed to provide a tight seal between two surfaces. It is commonly used in plumbing, automotive, and manufacturing industries.
The gasket washer ring is typically made of rubber, silicone, or other elastomeric materials. It is designed to fit between two surfaces, such as a bolt and a metal plate, to prevent leaks and maintain a secure connection..www.bdseals.com/Gasket-Washer-Ring.html