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 5835-01-168-6256
NSN 6110-00-608-0854
NSN 5965-01-548-5359
NSN 5910-00-038-6902
NSN 5915-01-303-5453
NSN 5920-01-175-3523
NSN 6320-01-225-9963
NSN 6240-00-159-0553
NSN 5935-01-596-3577
NSN 6220-00-505-1599
NSN 7035-00-834-2090
NSN 5935-01-617-7743