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 6110-00-161-4115
NSN 6110-01-397-8803
NSN 6645-01-047-3026
NSN 6105-00-493-3316
NSN 5975-00-827-2273
NSN 5950-01-380-5962
NSN 5905-01-237-5735
NSN 5835-01-426-6573
NSN 5999-01-509-6387
NSN 5935-01-379-5727
NSN 5835-01-435-4139
NSN 5835-01-266-4382