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 5965-01-153-1965
NSN 5835-00-153-4100
NSN 5990-00-324-4454
NSN 5960-01-089-8155
NSN 7035-01-226-2545
NSN 5910-01-203-1714
NSN 5945-01-447-1109
NSN 5960-01-437-7422
NSN 5998-01-254-1881
NSN 6110-00-478-6150
NSN 5915-01-063-8234
NSN 5985-01-629-2999