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 6145-00-635-9957
NSN 5895-01-616-3567
NSN 5950-00-762-0844
NSN 6240-01-542-9964
NSN 7035-01-411-6062
NSN 5855-01-213-0783
NSN 5985-01-219-6396
NSN 6130-01-645-6664
NSN 2925-01-004-5627
NSN 5835-01-572-1284
NSN 5998-01-610-1940
NSN 5998-01-415-9721