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 5855-00-941-6412
NSN 6145-01-003-9741
NSN 6620-01-289-6627
NSN 5910-01-645-4342
NSN 6620-00-455-9668
NSN 5855-01-100-3272
NSN 5895-00-964-8989
NSN 5999-01-452-4711
NSN 6135-01-020-3805
NSN 6650-01-494-6338
NSN 5855-01-169-9228
NSN 6610-00-261-8159