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 6610-00-299-1844
NSN 5965-01-445-3564
NSN 5965-01-595-6134
NSN 6145-01-160-2279
NSN 6620-01-256-8371
NSN 5999-00-597-5054
NSN 5930-01-288-8311
NSN 6145-01-555-8131
NSN 6105-01-087-9031
NSN 6620-01-116-3983
NSN 5910-01-029-1995
NSN 6130-01-461-3145