7017.20Subheading
Glassware; laboratory, hygienic or pharmaceutical, whether or not graduated or calibrated, having a linear co-efficient of expansion not over 5 x 10 (to the minus 6), (or 0.000005)) per Kelvin with a temperature of 0-300 degrees C
Section XIII — Articles of stone, plaster, cement, asbestos, mica or similar materials; ceramic products; glass and glassware
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.