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 7035-00-360-5964
NSN 5998-01-556-4250
NSN 5965-00-866-3371
NSN 6620-00-431-3837
NSN 5935-01-634-0668
NSN 6105-00-775-6072
NSN 5920-01-119-8382
NSN 6620-00-719-4915
NSN 5920-01-442-3395
NSN 6320-00-284-1524
NSN 5960-01-481-8051
NSN 5905-00-088-5663