Ring Flange Gasket, Gasket Material Graphite, Insert Material None, For Pipe Size 1 in, For Flange ANSI Class 150, Binder Material None, Color Gray, Inside Diameter 1 5/16 in, Minimum Operating Temperature -400 Degrees F, Maximum Operating Temperature 975 Degrees F, Outside Diameter 2 5/8 in, Thickness 1/16 in, Gasket Type Ring Gasket, Metal Detectable Gasket No, Included Fasteners Not Applicable, Hardness Not Rated, Includes Mounting Hardware No, X-Ray Detectable No