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 6320-01-185-3857
NSN 5950-00-033-4084
NSN 6645-01-567-8282
NSN 6145-01-467-2221
NSN 5965-00-208-4896
NSN 5999-01-132-5406
NSN 6620-01-612-6360
NSN 6240-01-457-7978
NSN 5975-01-647-8249
NSN 5998-01-602-3478
NSN 5920-01-552-4502
NSN 5998-01-429-0952