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 2925-01-645-2948
NSN 6240-00-269-3346
NSN 5855-01-470-6492
NSN 5935-00-042-9812
NSN 5930-00-232-4777
NSN 6150-01-096-9914
NSN 5930-01-419-3424
NSN 5915-01-411-5355
NSN 5855-01-110-9564
NSN 6105-00-120-9601
NSN 5905-01-268-1535
NSN 5945-01-659-4666