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 6130-00-777-9592
NSN 6220-00-501-7599
NSN 6150-00-389-4118
NSN 5975-00-445-9926
NSN 6220-01-076-0018
NSN 7035-01-045-7202
NSN 5835-01-416-6455
NSN 5930-00-203-5999
NSN 6110-01-277-0602
NSN 5999-01-010-6865
NSN 5925-00-175-2892
NSN 5990-01-071-1505