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 6145-01-602-9331
NSN 6650-01-596-4780
NSN 6610-01-563-1809
NSN 4140-00-186-3062
NSN 6620-00-360-4460
NSN 6620-01-176-1466
NSN 6110-01-200-8237
NSN 6610-01-380-0315
NSN 5998-01-400-6739
NSN 6110-00-826-0394
NSN 5905-01-220-1893
NSN 5950-01-342-4528