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 6240-00-139-5367
NSN 6135-01-454-2894
NSN 5905-00-276-7988
NSN 5910-01-339-7770
NSN 6320-01-229-6479
NSN 6685-01-516-4598
NSN 5990-00-193-3028
NSN 6645-00-813-3084
NSN 5910-00-142-2721
NSN 6145-01-244-7850
NSN 6220-00-875-1439
NSN 7035-01-398-9581