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 5990-01-532-6113
NSN 2925-00-017-9807
NSN 5960-01-444-2205
NSN 5930-01-291-6136
NSN 5965-01-523-4572
NSN 5945-01-591-0290
NSN 6650-00-557-0780
NSN 5930-01-486-0169
NSN 5950-01-054-2653
NSN 5835-01-416-6449
NSN 6320-01-350-5570
NSN 5996-01-232-0067