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 5935-00-185-5560
NSN 4140-01-340-6503
NSN 5925-01-371-1360
NSN 6240-00-738-1878
NSN 6620-01-158-7309
NSN 5990-01-126-5824
NSN 5925-01-542-4124
NSN 5999-01-140-5752
NSN 6220-01-605-4463
NSN 5975-00-379-2388
NSN 6610-00-142-9678
NSN 6620-01-386-5914