A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5915-00-577-1298
NSN 5999-00-372-4727
NSN 2925-00-194-7407
NSN 5996-01-508-4599
NSN 5999-01-374-4525
NSN 6150-00-110-6946
NSN 5999-01-174-4944
NSN 7035-00-126-1899
NSN 5990-01-571-7468
NSN 5999-01-213-5159
NSN 7035-01-328-7448
NSN 5950-01-061-2003