Loading...
SITCSection 8
U.S. imports of mounted optical elements, n.e.s. (SITC 88439) totaled $27.4M in July 2026, traded with 49 countries.
Importers of Mounted Optical Elements, N.E.S. paid $2.9M in duties in July 2026 — an effective duty rate of 12% on $24.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Mounted Optical Elements, N.E.S. imports of $27.4M in July 2026 ran 14% above the year-to-date monthly average of $24.1M.
Last updated: July 2026 dataPrisms, mirrors, beam splitters, waveplates, diffraction gratings, and other optical elements set into mechanical mounts—but not classifiable as lenses, filters, or other more specific optical articles—are captured here as a residual category. These components are essential inputs for laser systems, interferometers, spectrometers, defense electro-optics, and precision measurement instruments. The high unit values and specialized specifications typical of this trade make accurate classification and valuation documentation particularly important for customs compliance.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
1.2K shipments/mo
Basic heading 195 of 419 in section 8
Basic heading 88439 · $27.4M of $44.8B
This heading functions as a residual: if a mounted optical element is a lens, it goes to the appropriate lens heading; if it is a filter, it goes to the filter heading; if it is part of a complete instrument presented as such, it may be classified with that instrument. Articles that do not fit those more specific descriptions—prisms, mirrors, diffraction gratings, waveplates, beam splitters—belong here when mounted. The classification analysis should start with the more specific headings and arrive here only after ruling them out.
Detailed technical specifications—including the element type (prism, mirror, grating), substrate material, coating specifications, wavelength range, and intended application—should accompany the commercial invoice. For high-value precision optics, a manufacturer's datasheet or certificate of conformance is advisable. This documentation supports both correct classification and accurate customs valuation, which can be scrutinized for high-unit-value optical components.
Supplier Network
Get discovered by U.S. importers searching for HS 88439 — Mounted Optical Elements, N.E.S.. Be the first supplier listed.
ImportsExports
Imports
$27.4MYoY · Pro
Exports
$27.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Germany and Japan together supply 50% of it.
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.