3405.40Subheading
Scouring pastes and powders and other scouring preparations; (whether or not in the form of paper, wadding, felt, nonwovens, cellular plastics, cellular rubber, impregnated, coated or covered)
Section VI — Products of the chemical or allied industries
This is a 6-digit subheading — the most specific level of the international HS. Country tariff schedules extend it further; the US tariff lines (HTS) below refine it to 8–10 digits for duty purposes.
US tariff lines for this subheading are not in the bundled starter dataset yet — the full HTS schedule is coming soon. You can still search by code in the tariff simulator.