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 5930-01-134-5038
NSN 5855-00-185-1560
NSN 5925-00-361-1943
NSN 2925-01-177-1598
NSN 4140-01-118-8918
NSN 7035-01-411-6062
NSN 5920-01-528-7984
NSN 6130-01-522-9709
NSN 7035-01-121-0901
NSN 5895-01-392-6269
NSN 7035-00-145-9138
NSN 5945-01-535-6385