The Anahuac Mayab University is a private institution of Catholic inspiration founded in 1984.
They are used in the same applications as fender washers. A spherical washer is part of a self-aligning nut; it is a washer with one radiused surface, which is designed to be used in conjunction with a mating nut in order to correct for up to several degrees of misalignment between parts.
Q. What is the purpose of the Bak-ChekÂ® in the angle stop?. A. The internal Bak-Chek Â® keeps the water flowing in one direction through the angle stop. The Bak-Chek Â® ensures the flushometer valve stays pressurized if the water supply system were to lose pressure.