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 5996-01-227-2242
NSN 2925-01-387-0870
NSN 5975-00-098-2874
NSN 6220-01-093-7946
NSN 5920-01-607-4346
NSN 5975-01-540-9943
NSN 5998-00-915-1495
NSN 5975-00-862-4506
NSN 5945-01-241-0574
NSN 5905-01-396-4930
NSN 5950-01-342-9062
NSN 6240-00-266-6258