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 for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil
NSN 5920-01-244-8299
NSN 6320-01-202-8761
NSN 6110-00-001-9417
NSN 5999-01-042-1419
NSN 6130-01-490-4079
NSN 5935-01-095-4057
NSN 5910-01-212-9659
NSN 5975-00-119-9182
NSN 5835-01-522-1023
NSN 6135-01-125-4867
NSN 6240-01-526-9660
NSN 5960-00-365-9668