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 and accessories, nesoi, of bodies (including cabs) of heading 8701 to 8705
NSN 5920-01-368-6129
NSN 5925-01-549-0936
NSN 5945-01-068-4471
NSN 6110-00-804-4830
NSN 6220-01-380-5442
NSN 5910-00-563-0119
NSN 2925-00-546-3129
NSN 5960-01-067-9531
NSN 5996-00-679-5233
NSN 6130-00-066-9600
NSN 5965-01-202-1007
NSN 5996-00-597-2234