Section 11 Textiles and textile articles 54 Man-made filaments; strip and the like of man-made textile materials 54 02 Synthetic filament yarn (other than sewing thread), not put up for retail sale, including synthetic monofilament of less than 67 decitex. 54 02 31 Of nylon or other polyamides measuring per single yarn not more than 50 tex Commodity Code Description 54 02 31 00 Of nylon or other polyamides measuring per single yarn not more than 50 tex