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 6130-00-846-4961
NSN 6150-01-437-9087
NSN 4140-01-226-0637
NSN 5835-00-160-3126
NSN 5895-01-324-0374
NSN 5998-01-044-4185
NSN 5895-00-184-9499
NSN 5915-00-988-0014
NSN 6105-01-057-8641
NSN 5975-00-079-0022
NSN 6150-00-031-3647
NSN 4140-01-423-1647