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 5930-01-646-1842
NSN 6110-01-418-0199
NSN 5930-00-826-9070
NSN 5835-01-167-1824
NSN 4140-01-077-7555
NSN 5835-01-303-4677
NSN 5920-01-334-9848
NSN 5960-00-499-6781
NSN 5945-00-610-5771
NSN 6110-01-257-6801
NSN 7035-01-468-6532
NSN 6220-01-055-6555