U.S. exports of Parts & Accessories for Non-Optical Microscopes & Diffraction Apparatus (HS 901290) totaled $18.6M in August 2026.
Importers of Parts & Accessories for Non-Optical Microscopes & Diffraction Apparatus paid $1.1M in duties in August 2026, an average duty rate of 10.55% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Parts & Accessories for Non-Optical Microscopes & Diffraction Apparatus imports of $10.5M in August 2026 ran 16% above the year-to-date monthly average of $9.1M.
Last updated: August 2026 dataReplacement columns, detectors, specimen stages, and other components for electron microscopes, ion microscopes, and diffraction apparatus are captured under a single line (9012900000) — a narrow but high-value parts category serving the semiconductor, nanotechnology, and advanced materials sectors. Netherlands leads US import supply, followed by Germany and Czech Republic, mirroring the geographic concentration of non-optical microscope manufacturing in Europe. Given the extreme precision tolerances and proprietary interfaces involved, most components in this category are sourced directly from original equipment manufacturers rather than through aftermarket channels.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
491 import shipments a month
Components such as detectors, electron columns, and specimen stages can be imported separately under 9012.90 as parts and accessories, provided they are identifiable as designed for use with a non-optical microscope or diffraction apparatus. They do not need to accompany the complete instrument. However, importers should retain technical documentation — such as the OEM part number and instrument compatibility specifications — to support the classification at entry.
Neither the Netherlands nor Germany is currently subject to Section 301 tariffs (which target Chinese-origin goods) or to the Section 232 steel and aluminum tariffs as applied to finished precision instruments and their parts. Importers should nonetheless verify current trade remedy status with a licensed customs broker, as the regulatory environment can change.
ImportsExports
Imports
$10.5MYoY · free account
Exports
$18.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $112.5M of Parts & Accessories for Non-Optical Microscopes & Diffraction Apparatus and exported $247.3M.
Through August 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9012900000 | Pts for Microscopes, Exc Optical; Diffraction | $10.5M | 10.55% | 97.38% | $1.1M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9012900000 | Pts for Microscopes, Exc Optical; Diffraction | $18.6M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Subheading 1 of 2 in heading 9012
Subheading 901290 · $18.6M of $24.8M
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Exports · August 2026
destination
customs district
origin
entry
rate provision · imports
2.4% enters free of duty; duty collected equals 10.55% of imports for consumption.