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 6145-00-647-1893
NSN 5960-01-377-1907
NSN 6130-00-936-9124
NSN 6145-01-527-1954
NSN 5950-01-459-0261
NSN 5895-00-405-2473
NSN 5925-01-572-6023
NSN 6320-00-925-0558
NSN 5998-00-673-9678
NSN 6150-00-651-4079
NSN 5996-01-145-5843
NSN 5965-01-146-9162