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 5960-01-577-0628
NSN 5905-01-346-2383
NSN 7035-01-346-8800
NSN 6320-00-343-1798
NSN 5835-01-626-9603
NSN 5965-00-849-1313
NSN 6105-01-315-1773
NSN 6135-01-116-3385
NSN 4140-01-089-9724
NSN 5895-01-224-2725
NSN 6645-01-500-0827
NSN 5998-01-303-6218