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 5910-01-191-7504
NSN 6320-01-089-9086
NSN 5920-01-025-1618
NSN 7035-01-307-2560
NSN 5996-00-771-0952
NSN 6610-01-406-6696
NSN 6150-01-011-5383
NSN 6135-01-603-8367
NSN 6105-01-602-5769
NSN 2925-00-144-6405
NSN 7035-01-444-4240
NSN 6220-00-142-5115