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 7035-00-238-3662
NSN 5915-00-546-5547
NSN 6320-01-465-2028
NSN 5835-01-561-2959
NSN 6145-01-522-9341
NSN 5960-00-980-6749
NSN 6645-01-164-7650
NSN 6645-00-574-9712
NSN 6220-01-515-4348
NSN 6135-01-415-1163
NSN 6620-01-165-3784
NSN 5915-01-142-0387