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 4140-01-098-8706
NSN 5855-01-575-6772
NSN 5905-01-390-6867
NSN 5905-01-570-3421
NSN 6620-01-519-2628
NSN 5985-01-063-4565
NSN 5910-00-034-3943
NSN 7035-00-003-7518
NSN 5910-01-412-1070
NSN 6650-01-181-6037
NSN 5998-01-272-5022
NSN 6145-01-441-2252