U.S. imports of Parts of Electrical Machines & Apparatus with Individual Functions, N.E.S. (SITC 77879) totaled $107.7M in August 2026, imported from 68 countries.
Importers of Parts of Electrical Machines & Apparatus with Individual Functions, N.E.S. paid $13.1M in duties in August 2026, an average duty rate of 12.18% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataReplacement and service parts for the broad class of individually functioning electrical machines — including subassemblies, printed circuit boards, and mechanical housings specific to apparatus in the parent heading — are grouped here when no more specific parts provision applies. Correct classification requires demonstrating that the part is principally used with apparatus of the parent heading rather than with a more specifically described machine. For high-value capital equipment, misclassifying a part under this residual heading rather than a dedicated parts provision can affect both duty liability and eligibility for certain trade programs.
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4.0K import shipments a month
The importer should provide technical documentation — engineering drawings, OEM part numbers, and a statement of principal use — showing that the article is designed and used exclusively or principally with apparatus classifiable in the parent 'individual functions' heading. If the parent machine has its own dedicated parts subheading at the HTS level, that more specific provision takes precedence.
Possibly, but PCBAs are subject to their own classification rules: if the board is identifiable as a part of a specific machine in the parent heading and no more specific PCBA provision applies, it may classify here. However, bare PCBs and certain populated boards have dedicated HTS provisions that may take precedence. A CBP binding ruling is the most reliable way to confirm classification for high-volume PCBA imports.
Basic heading 150 of 642 in section 7
Basic heading 77879 · $107.7M of $172.0B
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ImportsExports
Imports
$107.7MYoY · free account
Exports
$120.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $1.2B of Parts of Electrical Machines & Apparatus with Individual Functions, N.E.S..
Through August 2026 · exports 10 of 12 months reported. Source: U.S. Census Bureau.
Imports · August 2026
origin
China pays 35.3% duty; Mexico 2.1%.
customs district
Census does not publish district detail for this classification system.
destination
Census does not publish state detail for this classification system.
entry
Census does not publish port detail for this classification system.