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 5996-00-557-3695
NSN 6105-01-606-4265
NSN 5910-00-852-9341
NSN 6620-00-064-7992
NSN 5990-00-989-6839
NSN 6130-01-247-4923
NSN 5895-01-260-1210
NSN 5985-00-050-2619
NSN 5910-01-386-5169
NSN 5855-01-483-2346
NSN 6130-01-327-3852
NSN 5975-00-522-2711