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 4140-01-100-6160
NSN 5930-01-429-8443
NSN 5965-01-614-5978
NSN 5920-01-514-7007
NSN 5945-00-831-3985
NSN 5895-01-320-2304
NSN 5935-01-625-9341
NSN 6320-01-659-2819
NSN 5930-00-736-1189
NSN 4140-00-441-4184
NSN 4140-00-171-1387
NSN 6620-01-423-0833