This FDA-certified, 0.203-inch thick, black sanitary gasket has an inside diameter of 5.820 inches and an outside diameter of 6.51 inches. It has a Standard (Type 1) connection and is used with tri-clamp fittings. The working temperature is -15 Degrees F to 400 Degrees F. It is made of Viton, has a tube hardness of 75A, and is chemical, high-temperature (400 Degrees F+), water, weather, and oil-resistant.