9030.90.89.31 - Of articles of subheading 9030.39

This HTS classification, 9030.90.89.31, specifically covers parts and accessories for instruments and apparatus used for measuring or checking electrical quantities, that fall under subheading 9030.39. These are typically components, attachments, or elements that are designed to be integrated with or support the functionality of oscilloscopes, spectrum analyzers, and similar devices, but excluding meters of heading 9028.

This category is distinguished from its siblings primarily by the specific parent subheading of the instrument it is intended for. For example, sibling categories exist for parts and accessories of instruments classified under subheadings 9030.20, 9030.31, 9030.32, 9030.33, and 9030.40. Therefore, proper classification hinges on identifying the precise original HTS subheading of the complete instrument or apparatus for which these parts and accessories are designed.

As this classification represents a leaf node, there are no further subdivisions. The focus for classification within 9030.90.89.31 is on the specific type of part or accessory and its direct relationship to instruments classified under subheading 9030.39. Examples might include specialized probes, cables, connectors, mounting hardware, or internal components integral to the operation of these electrical measuring and checking instruments.