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 5930-00-924-2232
NSN 6685-01-310-7942
NSN 6105-01-410-8948
NSN 6145-01-082-9048
NSN 6145-01-218-5807
NSN 6105-01-477-4744
NSN 5915-01-005-9017
NSN 5895-01-604-9047
NSN 6145-00-144-0918
NSN 5895-00-796-9405
NSN 5905-00-231-3968
NSN 6110-01-487-0219