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 5950-00-701-1854
NSN 5935-01-624-9028
NSN 5990-01-652-7373
NSN 5930-00-518-1451
NSN 6610-00-026-4389
NSN 5960-00-395-2506
NSN 5930-01-454-7018
NSN 6610-01-212-9817
NSN 5920-00-661-0840
NSN 5935-01-360-5311
NSN 7035-00-631-3782
NSN 5905-01-069-0474