Section 11 Textiles and textiles articles 54 Man-made filaments 54 02 Synthetic filament yarn, nprs (incl. synthetic monofilament) 54 02 31 Of nylon or other polyamides, measuring per single yarn not more than 50 tex 54 02 31 00 Of nylon or other polyamides, measuring per single yarn not more than 50 tex Commodity Code Description 54 02 31 00 00 Of nylon or other polyamides, measuring per single yarn not more than 50 tex