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 5935-01-370-9800
NSN 5895-00-708-9312
NSN 6240-01-102-1555
NSN 6135-00-681-2702
NSN 5835-00-148-9719
NSN 5945-00-289-3715
NSN 5950-01-487-8657
NSN 5930-00-159-7467
NSN 5950-00-821-5895
NSN 5920-00-269-6178
NSN 6685-01-551-2818
NSN 6145-01-038-7043