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 5925-00-361-8836
NSN 5930-00-252-4959
NSN 5930-00-212-1116
NSN 5855-00-256-5562
NSN 5965-00-894-0015
NSN 6650-00-221-9425
NSN 6620-01-348-8256
NSN 5996-01-363-7130
NSN 6105-00-539-0393
NSN 6320-00-546-9249
NSN 5975-01-108-9000
NSN 5960-01-065-9684