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 2925-01-418-3296
NSN 6135-00-269-5843
NSN 5990-01-386-5561
NSN 6645-01-298-4662
NSN 5910-01-399-0255
NSN 6150-01-023-8630
NSN 6650-00-707-1417
NSN 5915-00-316-6182
NSN 5998-00-327-8788
NSN 6240-00-774-9302
NSN 6110-01-432-0003
NSN 6645-01-305-3118