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 6620-00-400-4237
NSN 5985-00-754-0658
NSN 5998-00-253-1346
NSN 5985-00-737-0494
NSN 5996-00-757-5422
NSN 5965-01-241-0553
NSN 5960-01-513-3230
NSN 5925-00-112-3460
NSN 5996-00-259-0309
NSN 6105-01-074-9074
NSN 5975-01-283-8831
NSN 5915-01-245-3403