Ring Flange Gasket Gasket Material Silicone Insert Material None For Pipe Size 3 in For Flange ANSI Class 150 Binder Material None Color Blue Inside Diameter 3 1/2 in Minimum Operating Temperature -50 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 5 3/8 in Thickness 1/16 in Product Type Ring Gasket Metal Detectable Gasket Yes Included Fasteners Not Applicable Hardness 60A Includes Mounting Hardware No X-Ray Detectable No For Fluid Type Not Applicable