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 6105-00-787-7559
NSN 5915-00-370-0389
NSN 6145-01-487-5589
NSN 5895-00-505-7453
NSN 5990-00-366-0112
NSN 6130-00-334-0691
NSN 5915-00-636-9785
NSN 5915-01-497-9135
NSN 5996-00-111-1538
NSN 6130-01-281-6809
NSN 6135-00-276-7625
NSN 5945-01-094-7360