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 6150-00-489-7224
NSN 5920-01-660-8178
NSN 6685-01-268-9620
NSN 6220-01-271-2678
NSN 5920-00-025-7895
NSN 5920-01-322-4216
NSN 5950-01-483-3921
NSN 6130-01-563-3980
NSN 5950-01-466-1980
NSN 6105-00-232-1410
NSN 6220-01-189-1373
NSN 5835-01-384-3206