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 6110-01-562-7502
NSN 6150-00-226-1868
NSN 6110-01-229-9880
NSN 5935-01-555-7462
NSN 6150-00-488-6503
NSN 5999-00-230-5083
NSN 6145-01-467-1797
NSN 6145-00-969-5612
NSN 5965-01-444-1322
NSN 5965-00-035-4556
NSN 5998-01-533-9226
NSN 5950-01-287-9249