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 5935-00-142-9160
NSN 6130-01-013-9343
NSN 5835-01-200-4853
NSN 6685-00-941-5718
NSN 6220-00-330-3717
NSN 5905-01-526-3801
NSN 5905-00-504-8586
NSN 5835-01-576-9013
NSN 5996-00-644-4662
NSN 5945-01-171-7397
NSN 5975-01-162-3215
NSN 5935-01-484-1816