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 7035-00-703-3535
NSN 5895-01-534-6419
NSN 6150-01-434-0241
NSN 5999-01-349-5628
NSN 5960-01-578-5537
NSN 5999-01-437-5732
NSN 4140-01-617-5090
NSN 6110-00-427-4454
NSN 5975-01-151-3270
NSN 6135-01-426-8282
NSN 6610-01-023-6073
NSN 7035-01-312-3577