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 6320-01-578-6006
NSN 5935-00-106-6101
NSN 6135-00-660-8654
NSN 5855-01-657-7657
NSN 5835-00-484-1529
NSN 6650-01-651-9502
NSN 5895-00-759-9892
NSN 6150-01-041-0779
NSN 5910-00-247-2075
NSN 5960-01-407-1350
NSN 5975-01-012-6204
NSN 6145-00-146-7408