Full Face Flange Gasket Gasket Material Aramid Insert Material None For Pipe Size 1 in For Flange ANSI Class 300 Binder Material Buna-N Color Blue Inside Diameter 1 5/16 in Minimum Operating Temperature -100 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 4 7/8 in Thickness 1/32 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