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 4140-01-634-0330
NSN 6320-01-440-4982
NSN 5910-01-110-4379
NSN 5925-00-011-7011
NSN 5990-01-013-8464
NSN 5935-01-113-0441
NSN 5895-00-907-6991
NSN 5915-00-803-5396
NSN 5905-01-126-8099
NSN 6620-00-730-8699
NSN 4140-01-067-8242
NSN 5855-00-357-1158