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 5975-01-352-5853
NSN 5996-00-153-3216
NSN 6110-01-359-5382
NSN 5930-01-375-6651
NSN 5950-01-128-8246
NSN 6220-00-733-7974
NSN 5910-01-604-9141
NSN 5935-00-291-0954
NSN 6650-01-463-8405
NSN 5855-01-406-4821
NSN 5935-00-233-5430
NSN 5855-00-586-6255