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 5950-01-508-3593
NSN 5985-01-432-0866
NSN 5950-01-350-8328
NSN 5999-01-632-2915
NSN 6610-01-010-3159
NSN 6150-01-076-4811
NSN 6105-00-059-7996
NSN 7035-00-481-5182
NSN 5915-01-609-8605
NSN 5998-01-053-6349
NSN 5985-01-158-9170
NSN 5990-00-160-1176