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 5920-00-455-9743
NSN 5996-01-551-4801
NSN 5985-00-468-7361
NSN 5925-01-421-4473
NSN 6130-01-419-8858
NSN 6320-00-731-6134
NSN 6620-00-954-4971
NSN 5996-00-946-4291
NSN 5999-00-279-2020
NSN 6645-00-292-0093
NSN 6240-00-739-0961
NSN 2925-01-299-6967