This standard pertains to the various classes and types of stainless-steel fittings that are intended for the transmission and distribution of potable water, reclaimed water, and wastewater, and for use in other water-supply system facilities. This standard covers three classes of stainless-steel fittings: wrought, cast, and fabricated, in diameters ranging from 1/2 in. (13 mm) to 72 in. (1,800 mm). Fittings larger than 72 in. (1,800 mm) in diameter may be manufactured in accordance with this standard. Appurtenances are not covered by this standard. Compression fittings, grooved-end fittings, grooved-end couplings, tapping sleeves, sleeve-type couplings, and split-sleeve couplings are covered by other ANSI/AWWA standards.