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 6240-00-299-6126
NSN 7035-01-318-6578
NSN 5835-00-174-7763
NSN 5905-01-516-8932
NSN 6130-00-962-0510
NSN 5915-01-147-7772
NSN 6610-00-435-1493
NSN 5945-01-285-7263
NSN 5915-00-334-3008
NSN 6645-00-145-6411
NSN 6240-01-322-9387
NSN 6650-01-022-2617