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 4140-01-474-1216
NSN 5920-01-634-0250
NSN 5999-01-490-5835
NSN 5975-01-372-8691
NSN 6150-00-269-5017
NSN 5920-01-430-4365
NSN 6620-01-284-4109
NSN 2925-01-494-7327
NSN 6220-01-511-0830
NSN 6240-00-843-0698
NSN 6240-01-547-2026
NSN 6650-01-152-0665