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 5935-01-496-4304
NSN 6685-01-067-3743
NSN 7035-01-550-0439
NSN 5935-01-346-2764
NSN 6620-01-426-1148
NSN 5998-01-185-1571
NSN 4140-01-012-6377
NSN 5975-00-893-5443
NSN 5985-01-166-7301
NSN 5910-00-934-2920
NSN 5895-00-542-7408
NSN 6320-00-116-3658