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 5895-01-093-6968
NSN 5990-00-796-0728
NSN 6620-00-308-2531
NSN 5945-01-094-7518
NSN 5935-00-180-0317
NSN 2925-01-226-6126
NSN 6110-01-386-3093
NSN 6130-01-248-3696
NSN 5935-01-251-5102
NSN 5975-01-445-6261
NSN 6240-01-189-0184
NSN 6610-00-848-4764