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 7035-00-500-7839
NSN 5920-01-576-9869
NSN 6610-00-202-5481
NSN 5920-01-412-1080
NSN 5960-01-231-9119
NSN 5999-01-040-3891
NSN 6240-00-514-3507
NSN 5975-01-576-9733
NSN 5920-01-123-9358
NSN 5965-01-182-5768
NSN 5999-01-594-3428
NSN 5910-01-237-6569