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 6110-01-633-9660
NSN 5996-00-625-3738
NSN 6105-00-678-2317
NSN 5996-01-221-2091
NSN 6650-01-490-5205
NSN 6620-00-905-6590
NSN 6105-01-408-4559
NSN 5998-01-330-5893
NSN 2925-00-087-2465
NSN 5930-01-265-7803
NSN 6105-01-144-7193
NSN 6150-01-328-2378