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 6145-01-577-2478
NSN 6130-00-936-1921
NSN 6610-00-708-7330
NSN 6110-00-775-9161
NSN 6105-01-309-3237
NSN 6685-01-634-0611
NSN 5950-00-167-6263
NSN 5915-01-270-6883
NSN 5990-01-039-2016
NSN 5999-00-482-0916
NSN 5945-00-753-7716
NSN 5960-01-390-7236