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 5910-01-186-9300
NSN 5835-01-020-2262
NSN 5895-00-944-8548
NSN 6105-01-275-1031
NSN 5999-01-448-3039
NSN 5999-01-512-9178
NSN 6220-01-326-7204
NSN 7035-01-438-2108
NSN 5945-01-321-9410
NSN 5895-00-631-5705
NSN 6610-01-075-7490
NSN 5945-01-143-3575