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 6645-00-456-0080
NSN 5915-01-660-9660
NSN 6610-01-314-7964
NSN 5920-01-484-9924
NSN 5905-01-593-9970
NSN 5920-01-607-0771
NSN 5950-01-344-7353
NSN 6220-01-258-2568
NSN 6320-01-449-1014
NSN 5905-01-202-5981
NSN 2925-01-359-4027
NSN 6110-00-407-2076