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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 5915-00-886-1155
NSN 5945-00-754-3888
NSN 5985-00-873-3182
NSN 5905-01-254-2209
NSN 5935-01-461-2477
NSN 5855-01-381-7493
NSN 5835-01-281-7281
NSN 5998-00-375-4259
NSN 6135-01-537-1234
NSN 5999-00-524-0527
NSN 6110-01-575-8554
NSN 5930-00-554-9358