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 5960-00-171-9575
NSN 6320-00-994-0179
NSN 5910-01-096-8879
NSN 2925-01-633-4048
NSN 6220-01-326-1558
NSN 5950-01-542-9972
NSN 6130-00-233-6197
NSN 5930-00-010-1588
NSN 6105-00-506-2331
NSN 6130-01-417-2165
NSN 5998-01-540-6428
NSN 5960-00-119-4476