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 5999-00-005-5366
NSN 5996-01-358-6528
NSN 5960-01-322-1337
NSN 6320-01-240-4637
NSN 5905-01-206-9982
NSN 6135-00-009-4100
NSN 6620-01-070-9042
NSN 5835-01-602-0311
NSN 5835-01-584-8538
NSN 6105-01-217-8831
NSN 6220-00-168-5756
NSN 5930-01-442-9192