9201.20.00.21 - Containing a case measuring 152.40 cm or more but less than 167.64 cm in length

This HTS classification pertains to grand pianos that are equipped with a case measuring between 152.40 cm and 167.64 cm in length. This specific dimension of the instrument's case is the primary differentiating factor for this code. These instruments fall under the broader category of keyboard stringed instruments, specifically grand pianos, as defined within Section XVIII of the Harmonized Tariff Schedule.

The distinction of this subcategory from its siblings lies precisely in the measured length of the grand piano's case. For example, sibling codes differentiate based on cases measuring less than 152.40 cm, or those exceeding 167.64 cm, up to and beyond 195.58 cm. Therefore, a grand piano's classification within this specific code is contingent upon its case length falling within the defined 152.40 cm to 167.64 cm range.

As this HTS code is a leaf node, there are no further subcategories that subdivide this classification. The classification is determined solely by the length of the grand piano's case. Importers and exporters should ensure accurate measurement of the case to ensure correct classification under this HTS code.