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 6130-00-344-2839
NSN 5930-01-570-4926
NSN 6135-01-038-6225
NSN 5985-01-201-0212
NSN 5996-00-805-7621
NSN 5855-01-147-6024
NSN 5996-01-518-0462
NSN 5975-01-100-5088
NSN 6645-00-103-2517
NSN 6110-01-502-4879
NSN 5935-01-034-3203
NSN 6220-01-394-0121