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 5945-01-094-7727
NSN 5945-01-329-9479
NSN 6650-00-818-2741
NSN 6650-01-424-8048
NSN 5996-01-068-0329
NSN 5910-01-421-2460
NSN 6105-01-202-4086
NSN 6320-01-330-8054
NSN 5910-01-107-0835
NSN 5895-00-845-6367
NSN 6610-00-477-7931
NSN 5905-00-099-9995