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 6110-01-294-6483
NSN 5910-01-483-2262
NSN 6650-01-534-3587
NSN 6650-00-809-1817
NSN 5999-00-844-2570
NSN 6110-01-335-5086
NSN 6320-01-512-2031
NSN 6145-00-601-9655
NSN 6320-00-228-5678
NSN 5855-01-010-4921
NSN 6620-01-442-8444
NSN 5950-00-679-9511