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 5998-01-514-7345
NSN 5960-01-044-3798
NSN 5945-01-632-6960
NSN 6145-00-738-5601
NSN 7035-01-099-9163
NSN 5965-00-532-3284
NSN 5895-00-078-9281
NSN 6135-01-034-5202
NSN 5930-01-037-7126
NSN 6145-01-482-4647
NSN 7035-01-065-5284
NSN 5910-01-582-7355