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 5935-00-291-4910
NSN 5960-00-034-7925
NSN 5975-01-568-3518
NSN 5925-01-461-9298
NSN 5925-00-155-8463
NSN 5895-00-983-4105
NSN 5930-01-094-1434
NSN 5935-01-634-0668
NSN 5996-01-354-6483
NSN 7035-00-064-7008
NSN 6610-01-143-6961
NSN 5855-01-658-4510