.The ORING 01-0011.00X3 is a brown, 80 durometer fluorinated ethylene propylene (FPM) O-ring gasket that is 3mm thick with an internal diameter of 11mm. It is designed for use in temperatures ranging from -20°C to 200°C, and is manufactured by ORING. The O-ring provides a seal to prevent gases and liquids from leaking past connections. It is often used in plumbing, automotive, and other industrial applications.