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 2925-01-381-5307
NSN 5999-01-095-5552
NSN 6150-00-272-7949
NSN 5960-01-094-4134
NSN 6145-01-353-2890
NSN 4140-01-530-9251
NSN 6130-01-419-8855
NSN 5999-00-298-2161
NSN 5835-00-013-0905
NSN 5905-01-521-9790
NSN 6110-01-252-6689
NSN 5920-01-039-8099