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 7035-00-126-1899
NSN 5855-00-256-5562
NSN 5998-01-083-5195
NSN 6240-01-303-6174
NSN 5950-01-320-6748
NSN 5855-00-318-7185
NSN 5985-01-422-1113
NSN 7035-01-183-1989
NSN 6145-01-004-6342
NSN 6610-00-827-8959
NSN 6105-01-042-4792
NSN 5895-01-535-7082