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 6645-00-819-5045
NSN 6150-01-576-4472
NSN 5915-00-518-0851
NSN 6240-01-364-8696
NSN 5915-01-023-8387
NSN 5910-00-649-8513
NSN 6240-00-253-7611
NSN 5920-01-104-4332
NSN 5905-01-451-4012
NSN 5975-00-133-8687
NSN 5960-01-107-3272
NSN 5915-01-320-6858