9017.90.01 - Parts and accessories

This HTS category, 9017.90.01, encompasses parts and accessories specifically designed for the drawing, marking-out, and mathematical calculating instruments, as well as hand-held length measuring instruments, classified under heading 9017. This includes components, fittings, and accessories that are not themselves complete instruments but are integral to the function or operation of such devices. Examples could include specialized rulers, scales, styluses, drawing pen nibs, calipers, micrometers, or replacement parts for slide rules and drafting machines.

Unlike its sibling categories which classify complete instruments such as drafting machines (9017.10), other drawing and calculating instruments (9017.20), and micrometers, calipers, and gauges (9017.30), this category is exclusively for components. It is crucial to distinguish these parts and accessories from the finished goods they are intended to serve. The classification here relies on the fact that the item is not a functional instrument on its own but is designed to be incorporated into or used with one of the instruments classified elsewhere within heading 9017.

The subcategories within 9017.90.01 provide a detailed breakdown for classifying these parts and accessories based on the specific subheading of the parent instrument they relate to. This allows for granular classification, whether the part is intended for drafting tables and machines (9017.10), other drawing or calculating instruments (9017.20), or measuring instruments like micrometers and calipers (9017.30). The "Other" subheading (9017.90.01.60) serves as a catch-all for parts and accessories not otherwise specified, ensuring comprehensive coverage within this category.