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 5915-00-070-0284
NSN 7035-01-493-4173
NSN 5895-01-026-5439
NSN 5985-01-391-7665
NSN 7035-01-556-6860
NSN 5910-00-607-3471
NSN 5915-00-020-2818
NSN 5920-01-187-1014
NSN 5905-00-502-0967
NSN 7035-01-318-3158
NSN 5985-00-505-2189
NSN 7035-00-803-3056