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 6105-00-920-7754
NSN 6620-01-367-0844
NSN 5998-01-433-0551
NSN 5895-01-204-9039
NSN 5996-01-102-3072
NSN 6110-01-304-5018
NSN 4140-01-269-3304
NSN 5855-01-627-7577
NSN 5920-00-340-3002
NSN 6685-01-090-0613
NSN 5975-01-606-0686
NSN 5935-01-060-8199