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 5920-01-472-6923
NSN 5965-01-472-1997
NSN 5999-00-938-7220
NSN 5930-01-322-4924
NSN 6620-01-388-5713
NSN 6130-00-905-1179
NSN 5985-01-421-4559
NSN 4140-00-832-0459
NSN 5950-01-166-8200
NSN 6320-01-056-1164
NSN 5905-01-231-4442
NSN 5935-01-008-1975