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 5855-00-427-7848
NSN 5855-01-633-7247
NSN 5935-00-626-6103
NSN 6610-00-759-7170
NSN 5965-01-348-8761
NSN 6685-00-276-9889
NSN 6610-00-225-9886
NSN 5835-01-611-8912
NSN 6145-01-143-6772
NSN 5965-01-550-7505
NSN 5996-01-138-0281
NSN 5965-01-350-1890