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 5985-00-568-2375
NSN 6150-00-952-2766
NSN 5925-01-305-5580
NSN 6645-00-526-9476
NSN 5930-00-982-1935
NSN 6135-01-495-0933
NSN 6105-00-177-5173
NSN 6145-01-019-4478
NSN 6650-01-164-3503
NSN 6620-00-416-4131
NSN 6105-01-199-9380
NSN 5910-00-528-9714