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 5985-00-719-5080
NSN 5950-01-460-5416
NSN 6220-01-388-9011
NSN 6685-01-137-8517
NSN 5915-00-755-7120
NSN 5999-00-518-1007
NSN 5905-00-282-6853
NSN 6130-01-434-2284
NSN 5905-01-375-3597
NSN 5960-01-009-5983
NSN 5965-00-161-6429
NSN 5975-01-034-6745