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 6135-00-405-1989
NSN 6645-00-527-7258
NSN 5915-01-225-8492
NSN 5905-01-089-8723
NSN 5895-01-423-2773
NSN 6650-01-503-5419
NSN 4140-01-363-8263
NSN 6105-01-068-4366
NSN 5965-00-961-1627
NSN 7035-00-238-3662
NSN 6240-01-324-6569
NSN 5835-01-192-4165