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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 5960-01-640-9971
NSN 5999-00-073-2277
NSN 5975-00-955-9330
NSN 6135-01-167-0759
NSN 5960-00-715-9227
NSN 5855-01-431-8937
NSN 5920-01-364-0769
NSN 5920-01-012-9926
NSN 5998-01-605-3886
NSN 5920-01-121-1213
NSN 4140-01-051-0421
NSN 5975-01-326-2176