Full Face Flange Gasket Gasket Material FKM Insert Material None For Pipe Size 1 1/2 in For Flange ANSI Class 150 Binder Material FKM Color Black Inside Diameter 1 7/8 in Minimum Operating Temperature -10 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 5 in Thickness 1/8 in Number of Bolt Holes 4 Bolt Hole Diameter 5/8 in Gasket Type Full-Face Gasket Metal Detectable Gasket No Included Fasteners Not Applicable Hardness Shore 75A