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 5975-00-816-6119
NSN 6105-00-336-3323
NSN 5985-01-317-4463
NSN 6610-01-160-6585
NSN 5920-01-435-3862
NSN 5990-01-481-6814
NSN 5945-01-207-9435
NSN 5915-00-861-1683
NSN 6110-01-024-9428
NSN 5999-00-043-0303
NSN 6105-00-527-8571
NSN 5998-01-462-5784