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 5835-00-447-1924
NSN 5895-01-453-6606
NSN 6645-00-988-4427
NSN 6105-01-634-0322
NSN 6150-01-059-5805
NSN 5996-01-633-7979
NSN 6150-01-442-7622
NSN 6220-01-101-2324
NSN 4140-01-658-2140
NSN 6685-01-541-7243
NSN 6685-01-490-6018
NSN 5915-00-734-4399