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 6650-01-334-7768
NSN 7035-00-470-4977
NSN 5915-00-448-9410
NSN 6130-00-909-2101
NSN 6130-01-651-0957
NSN 5975-01-145-4891
NSN 5835-01-389-8218
NSN 5950-00-995-0406
NSN 5996-01-612-8119
NSN 6650-01-542-9326
NSN 5895-00-876-6855
NSN 6320-01-397-9995