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 5905-01-386-0434
NSN 5998-00-475-1862
NSN 6130-00-113-6170
NSN 5965-01-515-8461
NSN 5965-01-095-9767
NSN 5945-01-619-1253
NSN 2925-01-583-5619
NSN 5925-01-176-0922
NSN 6105-01-408-5467
NSN 5935-00-661-0825
NSN 5915-01-076-0406
NSN 5935-00-462-0728