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 6105-01-597-0043
NSN 5999-01-472-0650
NSN 5930-00-104-5597
NSN 5965-00-524-5521
NSN 5999-00-128-2225
NSN 5910-01-144-6891
NSN 6645-01-487-8227
NSN 6650-00-439-8054
NSN 6145-01-550-6982
NSN 5930-00-504-9968
NSN 5925-01-503-1167
NSN 5960-01-512-0233