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 5920-00-490-9176
NSN 2925-01-619-4825
NSN 5985-01-094-8306
NSN 6620-01-313-8164
NSN 5905-01-339-0041
NSN 5920-00-484-8074
NSN 5920-00-484-5408
NSN 5910-01-031-2075
NSN 6130-00-438-9271
NSN 6135-01-599-7563
NSN 7035-01-070-7015
NSN 5965-01-260-7146