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 5945-01-357-6492
NSN 5965-01-563-0489
NSN 6110-01-528-8159
NSN 5960-01-530-8828
NSN 6150-01-394-8910
NSN 5895-01-525-8640
NSN 5996-01-286-3806
NSN 6645-01-525-7493
NSN 5895-01-094-9650
NSN 5975-01-469-5558
NSN 6620-01-182-4938
NSN 6145-01-196-1678