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 5960-01-609-6565
NSN 5835-00-168-9623
NSN 5965-01-147-5847
NSN 5835-01-604-2279
NSN 5999-01-473-4824
NSN 5930-01-023-1571
NSN 5985-01-084-5116
NSN 5965-01-526-8967
NSN 6130-00-670-0880
NSN 6620-01-250-1692
NSN 5945-00-054-6528
NSN 5895-01-235-8073