Full Face Flange Gasket, Gasket Material Aramid, Insert Material Not Applicable, For Pipe Size 4 in, For Flange ANSI Class 150, Binder Material Buna-N, Color Green, Inside Diameter 4 1/2 in, Minimum Operating Temperature -100 Degrees F, Maximum Operating Temperature 400 Degrees F, Outside Diameter 9 in, Thickness 1/64 in, Number of Bolt Holes 8, Bolt Hole Diameter 3/4 in, Gasket Type Full-Face Gasket, Metal Detectable Gasket No, Hardness Not Rated, Includes Mounting Hardware No