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 5945-01-452-1067
NSN 5999-01-412-0470
NSN 5855-01-359-8592
NSN 5935-00-431-8347
NSN 5920-00-080-0707
NSN 5905-01-497-2864
NSN 5935-01-036-8120
NSN 5935-01-419-9802
NSN 5998-00-251-0887
NSN 6240-01-393-5945
NSN 7035-01-539-2939
NSN 5930-01-381-6277