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 6685-00-516-2173
NSN 5975-00-009-7020
NSN 5990-01-264-9759
NSN 5990-01-234-8646
NSN 5965-01-010-1258
NSN 5950-01-230-8289
NSN 5990-00-781-2575
NSN 5910-00-898-5480
NSN 2925-01-467-7672
NSN 5950-01-217-5289
NSN 5905-01-040-3726
NSN 6220-00-925-7470