Full Face Flange Gasket Gasket Material FKM Insert Material None For Pipe Size 2 1/2 in For Flange ANSI Class 150 Binder Material FKM Color Black Inside Diameter 2 7/8 in Minimum Operating Temperature -10 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 7 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 Shore 75A