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 5999-00-468-4150
NSN 4140-01-384-2858
NSN 7035-00-055-9778
NSN 6130-01-117-4053
NSN 4140-01-123-9149
NSN 6645-00-864-6794
NSN 6620-01-486-9040
NSN 5975-01-360-1776
NSN 5910-01-181-6650
NSN 5835-01-178-4154
NSN 6320-01-496-4605
NSN 6105-00-284-7642