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 2925-01-274-8576
NSN 5960-01-120-6523
NSN 5998-01-179-2432
NSN 5930-01-447-2837
NSN 5905-01-486-0708
NSN 5935-01-109-0749
NSN 5960-01-170-4057
NSN 6645-00-954-4065
NSN 5960-01-032-4229
NSN 5935-00-706-0898
NSN 5999-01-447-5804
NSN 5895-01-321-4664