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 6220-00-099-9192
NSN 5999-01-078-0507
NSN 5925-01-532-0296
NSN 5895-01-221-1074
NSN 4140-00-587-1615
NSN 6240-01-373-4530
NSN 6105-01-018-3677
NSN 5835-01-509-8992
NSN 5835-01-043-1576
NSN 5945-00-286-8594
NSN 5895-01-282-1131
NSN 5985-00-767-5093