8473.30.20.00 - Parts and accessories, including face plates and lock latches, of printed circuit assemblies

This HTS subheading, 8473.30.20.00, specifically covers discrete parts and accessories intended for use with machines classified under heading 8471. The key characteristic here is that these components are designed for printed circuit assemblies (PCAs), which are the backbone of modern electronic machinery. Examples include specialized face plates that house or protect PCAs and lock latches that secure them within their housings. The classification hinges on the component's direct relationship and functional integration with the printed circuit assembly itself, rather than the broader machine it serves.

It is crucial to distinguish this category from its sibling, 8473.30.11, which covers the entire printed circuit assemblies themselves. While this subheading deals with the *parts and accessories* of PCAs, 8473.30.11 classifies the complete, populated circuit boards. Similarly, it differs from 8473.30.51.00 ("Other") by its specific focus on components integral to PCAs, excluding more general parts or accessories for machines of heading 8471 that do not directly relate to the PCA.

As a leaf node, this category does not have further subdivisions. Therefore, the focus for classification within 8473.30.20.00 is on identifying components that are unequivocally designed as accessories or integral parts for printed circuit assemblies, ensuring they are not classified as complete PCAs or as general parts and accessories for larger machinery. The essential criterion is the direct and exclusive applicability to the printed circuit assembly.