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 5905-01-517-1245
NSN 5990-00-277-3763
NSN 5915-01-155-1651
NSN 6320-01-612-7035
NSN 6240-01-401-5340
NSN 6240-01-534-4007
NSN 5998-01-575-6915
NSN 5945-01-374-6935
NSN 6240-01-494-9861
NSN 5855-01-459-9254
NSN 4140-00-690-5288
NSN 6645-00-412-5677