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 5945-01-597-6623
NSN 6220-00-014-7745
NSN 6105-01-591-8022
NSN 6320-01-585-8468
NSN 5999-01-280-5496
NSN 5855-00-908-9314
NSN 5960-00-529-2704
NSN 2925-01-317-6973
NSN 6145-00-158-8704
NSN 5965-01-476-8539
NSN 5996-00-477-3926
NSN 6130-00-266-7496