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 5950-01-325-2066
NSN 5996-01-389-6891
NSN 5985-01-047-3527
NSN 6135-01-608-3470
NSN 5905-01-365-5422
NSN 5998-00-324-0878
NSN 5920-01-462-2517
NSN 6240-01-625-5273
NSN 6130-00-155-5873
NSN 5910-01-261-4799
NSN 6320-00-994-0179
NSN 5895-00-235-8510