9027.90.56.30 - Of articles of subheading 9027.30.40

This HTS classification covers parts and accessories specifically designed for instruments and apparatus falling under subheading 9027.30.40. Subheading 9027.30.40 pertains to spectroscopes, spectrophotometers, and colorimeters. Therefore, this category encompasses components, fittings, and attachments intended for use with these analytical instruments, which are primarily used for the measurement and analysis of light and its interaction with matter. Examples might include specific lenses, prisms, light sources, detectors, or sample holders manufactured to fit these types of devices.

This category is distinguished from its sibling categories by its precise reference to the originating subheading. For instance, sibling 9027.90.56.25 covers parts for instruments of subheading 9027.20.50 (mass spectrometers), while 9027.90.56.40 and 9027.90.56.50 are for parts of instruments classified under 9027.50.10 and 9027.50.40, respectively. This specific designation ensures that only accessories for the defined spectroscopes, spectrophotometers, and colorimeters are classified here, preventing misclassification with parts for other types of analytical equipment within the broader 9027 chapter.

As this is a leaf node in the HTS structure, there are no further subcategories. The classification is at its most specific level, meaning that any part or accessory that meets the description of being "Of articles of subheading 9027.30.40" will fall into this code. When classifying items, it is crucial to verify that the part or accessory's intended use and design align with the operational requirements of a spectroscope, spectrophotometer, or colorimeter.