Full Face Flange Gasket Gasket Material ePTFE Insert Material None For Pipe Size 1 in For Flange ANSI Class 300 Binder Material None Color White Inside Diameter 1 5/16 in Minimum Operating Temperature -450 Degrees F Maximum Operating Temperature 600 Degrees F Outside Diameter 4 7/8 in Thickness 1/8 in Number of Bolt Holes 4 Bolt Hole Diameter 3/4 in Gasket Type Full-Face Gasket Metal Detectable Gasket No Included Fasteners Not Applicable Hardness Not Rated