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 5945-01-353-7924
NSN 5999-01-616-4947
NSN 5835-01-284-5689
NSN 5996-00-803-6475
NSN 6130-01-516-6235
NSN 5960-01-573-6483
NSN 6645-01-428-3576
NSN 6610-01-381-0652
NSN 5935-01-414-4350
NSN 5855-01-085-5354
NSN 6145-01-400-1030
NSN 6220-01-557-6638