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 5996-00-304-8196
NSN 5835-01-132-5894
NSN 6105-01-540-8713
NSN 6130-00-456-5319
NSN 6650-01-432-7753
NSN 5920-01-491-1905
NSN 7035-01-263-0154
NSN 6610-01-200-2313
NSN 5910-01-596-1685
NSN 5910-01-191-2883
NSN 5930-01-634-0659
NSN 5996-01-069-5662