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 5996-01-494-2942
NSN 6130-00-660-8848
NSN 5990-01-646-6149
NSN 6150-01-019-3840
NSN 5935-01-202-8272
NSN 6620-01-647-8261
NSN 5985-01-090-5794
NSN 5950-00-050-0206
NSN 6105-01-328-8511
NSN 5965-01-527-5012
NSN 5905-00-005-7232
NSN 5999-01-487-0983