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 6320-00-035-8781
NSN 5935-00-107-7315
NSN 6320-00-394-8458
NSN 6135-01-363-5109
NSN 5915-01-214-0747
NSN 5990-01-369-6915
NSN 5975-01-282-7996
NSN 6105-00-935-5256
NSN 6610-01-351-4607
NSN 5925-01-076-1429
NSN 6150-00-286-0827
NSN 5975-01-192-8694