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 6620-00-936-3463
NSN 7035-01-435-4009
NSN 7035-01-102-2386
NSN 5905-01-037-9673
NSN 6220-01-315-2718
NSN 5905-01-485-4198
NSN 6110-01-597-2223
NSN 6145-01-065-0799
NSN 6685-01-397-2837
NSN 5998-01-484-8713
NSN 6220-01-348-5510
NSN 6610-00-081-2365