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 5895-01-406-4601
NSN 5990-01-226-2653
NSN 6320-01-445-5893
NSN 6110-00-466-1674
NSN 5915-00-144-5548
NSN 2925-01-497-5680
NSN 6105-00-432-0771
NSN 2925-00-474-3645
NSN 6220-01-084-8619
NSN 5960-01-044-9439
NSN 5910-01-394-2212
NSN 5999-01-004-9905