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 5950-01-514-4154
NSN 4140-01-300-8060
NSN 5945-01-312-9416
NSN 5935-00-256-2103
NSN 5965-01-521-3224
NSN 5905-00-097-7032
NSN 4140-01-350-3277
NSN 6105-01-548-8436
NSN 5930-01-631-3871
NSN 2925-01-224-1885
NSN 5925-01-340-1185
NSN 4140-01-091-6797