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 7035-01-226-8894
NSN 6220-00-997-9073
NSN 5998-00-437-4063
NSN 7035-00-153-3826
NSN 5975-01-414-8379
NSN 6240-01-428-7619
NSN 6645-00-933-0529
NSN 6105-01-364-2104
NSN 5975-01-512-8525
NSN 5925-00-843-0315
NSN 6650-00-999-2656
NSN 2925-01-444-2061