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 5960-01-367-6153
NSN 6150-01-604-8177
NSN 5996-01-487-6249
NSN 6240-01-315-1984
NSN 5950-00-278-1201
NSN 5910-01-364-9163
NSN 6240-00-542-6657
NSN 5915-00-702-5905
NSN 5996-01-348-1285
NSN 4140-00-400-4872
NSN 6110-00-005-7878
NSN 6110-01-399-4899