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 6110-01-277-2563
NSN 6105-00-448-5700
NSN 5930-00-780-9974
NSN 5915-01-582-4300
NSN 6130-00-058-0611
NSN 5945-01-371-1462
NSN 5960-00-449-7994
NSN 6150-00-780-2408
NSN 5945-01-578-4625
NSN 6145-00-008-1834
NSN 5895-01-418-1764
NSN 5996-01-429-0390