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 6105-01-222-9399
NSN 6145-01-494-6252
NSN 5905-01-578-6998
NSN 5930-01-656-3720
NSN 5935-01-592-0684
NSN 5990-01-629-7927
NSN 6320-01-084-8821
NSN 5945-00-143-4422
NSN 5895-00-408-1567
NSN 5920-01-345-0986
NSN 5835-01-091-8353
NSN 5930-00-516-1217