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 5960-01-137-2329
NSN 6105-00-779-0769
NSN 6220-01-469-5533
NSN 6130-00-823-8481
NSN 5910-00-910-8241
NSN 5950-01-452-2665
NSN 6220-01-110-6527
NSN 6150-01-281-7279
NSN 5905-01-567-0299
NSN 5835-01-584-8538
NSN 6320-01-334-9840
NSN 5960-01-262-1399