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 5895-00-941-2960
NSN 5835-01-377-8972
NSN 6145-00-134-7271
NSN 5935-01-218-3967
NSN 5920-00-543-1266
NSN 6620-01-301-3258
NSN 5960-00-204-7506
NSN 5910-00-584-4508
NSN 6110-01-590-2904
NSN 6240-01-110-6235
NSN 5996-01-461-3464
NSN 5998-00-323-8334