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 5960-01-470-1579
NSN 5996-00-251-9173
NSN 5960-01-226-7297
NSN 5996-00-213-7121
NSN 2925-00-328-2018
NSN 6105-01-428-3911
NSN 7035-00-631-3782
NSN 5910-00-560-4366
NSN 2925-00-968-6339
NSN 5945-01-651-5308
NSN 5985-01-069-3518
NSN 5895-00-909-9634