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 4140-01-089-9724
NSN 6150-00-152-9901
NSN 6145-01-444-1668
NSN 6645-01-606-2164
NSN 5965-01-231-5047
NSN 5990-00-186-2445
NSN 5985-01-484-8928
NSN 5996-01-074-0544
NSN 5910-00-156-7293
NSN 5985-00-601-8914
NSN 5855-01-147-4785
NSN 5855-01-339-7675