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 6650-01-333-7918
NSN 5910-01-387-3014
NSN 6220-00-993-0419
NSN 6135-00-078-9931
NSN 6110-01-648-5878
NSN 5855-01-125-4768
NSN 5855-00-361-0167
NSN 6150-01-263-9766
NSN 5945-00-217-1074
NSN 5945-01-231-9607
NSN 5895-00-723-2059
NSN 6240-01-209-6639