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 5895-00-727-6980
NSN 5935-01-229-3059
NSN 5945-01-482-0578
NSN 6110-01-641-7363
NSN 6110-01-492-7901
NSN 6610-01-365-7796
NSN 5925-01-384-2131
NSN 5835-01-250-5048
NSN 6240-01-431-5790
NSN 6610-00-184-0833
NSN 5996-01-406-9297
NSN 6620-01-333-4734