Full Face Flange Gasket Gasket Material Aramid Insert Material None For Pipe Size 1 1/4 in For Flange ANSI Class 300 Binder Material Buna-N Color Blue Inside Diameter 1 11/16 in Minimum Operating Temperature -100 Degrees F Maximum Operating Temperature 400 Degrees F Outside Diameter 5 1/4 in Thickness 1/16 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