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 5915-00-617-5054
NSN 5999-01-442-0927
NSN 5925-01-367-2519
NSN 6150-01-657-8909
NSN 6650-00-330-0108
NSN 5905-01-491-7600
NSN 6320-00-098-2858
NSN 5920-00-398-0766
NSN 5915-01-371-9319
NSN 6110-01-255-6523
NSN 5960-01-531-9108
NSN 5930-00-225-6640