Table & Kitchen Glassware, NESOI

If a glass baking dish does not meet the ≤5×10⁻⁶/K thermal expansion specification required for 7013.42, it would fall into the residual kitchen glassware heading 7013.49, with the specific 10-digit line determined by whether it is pressed-and-toughened, crystalline, cut/engraved, or plain, and by its unit value. Importers should confirm the glass specification with the manufacturer before entry.

Crystalline glass in this context refers to glass containing barium oxide, zinc oxide, or similar compounds that replicate the optical brilliance of lead crystal without the lead content. The manufacturer's composition data is the primary basis for claiming the crystalline subheading; absent that documentation, CBP will default to the general NESOI line.