These are ANSI standard, 150# class flat face (Flange Face or Full Face) gaskets. If you need another class (i.e. 300, 600, 900, etc…) just let us know. We can make it!
This is industrial grade FKM with the following parameters:
20° to 350° Service Temperature (°F)
75 Durometer Hardness
1,200 PSI Tensile Strength
This material is a smooth surface with a slight cinnamon smell. It’s an excellent gasket material I use almost every day. And it’s made right here in the United States to exacting standards.