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 6610-00-186-3433
NSN 5915-01-567-1928
NSN 2925-01-251-9529
NSN 6650-00-724-8258
NSN 5935-01-484-1975
NSN 5835-01-488-6678
NSN 5999-01-086-8778
NSN 5895-01-023-8446
NSN 6145-01-444-3548
NSN 5920-00-384-8926
NSN 5835-01-641-0073
NSN 5905-00-945-3625