9017.90.01.05 - Of articles of subheading 9017.10.40

This HTS classification, 9017.90.01.05, pertains to parts and accessories specifically for drawing, marking-out, or mathematical calculating instruments that fall under subheading 9017.10.40. These instruments are typically used for technical drawing, drafting, and related design activities. The classification focuses on components such as linkages, arms, or specialized attachments that are integral to the functioning of the primary instruments found in 9017.10.40, distinguishing them from other parts and accessories for different types of instruments within the broader 9017 heading.

It is crucial to differentiate this category from its siblings. For instance, 9017.90.01.15 covers parts and accessories for articles under subheading 9017.10.80, which likely represent a different type or application of drawing instruments. Similarly, other sibling categories at the 9017.90.01 level are dedicated to parts and accessories for instruments classified under subheadings like 9017.20.40, 9017.20.70, 9017.20.80, and 9017.30.40, each representing distinct categories of measuring, marking-out, or calculating devices. Therefore, the specific subheading from which the article originates is the primary determinant for classification within this section.

As this is a leaf node, there are no further subcategories. Classification within 9017.90.01.05 is determined by whether the part or accessory is specifically designed for and intended for use with instruments classifiable under 9017.10.40. This includes assessing the physical characteristics, materials, and intended function of the part in relation to the complete instrument it is meant to serve.