Harmonized System
U.S. imports of Parts for Bookbinding Machinery, Including Parts for Book-Sewing Machines (HS 844090) totaled $6.3M in August 2026, imported from 37 countries.
Importers of Parts for Bookbinding Machinery, Including Parts for Book-Sewing Machines paid $465K in duties in August 2026, an average duty rate of 7.39% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Parts for Bookbinding Machinery, Including Parts for Book-Sewing Machines imports of $6.3M in August 2026 ran 44% above the year-to-date monthly average of $4.4M.
Last updated: August 2026 dataReplacement and aftermarket parts for bookbinding and book-sewing equipment enter under a single tariff line, 8440900000, and are sourced primarily from Japan and Switzerland — the same precision-engineering hubs that supply the parent machines. Parts trade in this heading is driven by the long service lives of industrial binding lines, where OEM components for folder-gluers, perfect binders, and thread-sewers must meet tight mechanical tolerances. Importers should verify that multi-function components used across both bookbinding and other paper-working machinery are correctly classified here rather than under the broader parts heading for paper-making machinery (HTS 8441).
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
296 import shipments a month
CBP looks for evidence of dedicated use — OEM part numbers, technical drawings, or manufacturer declarations confirming the component is designed solely or principally for bookbinding or book-sewing equipment. Generic fasteners, bearings, or motors that serve multiple machine types are typically classified by their own headings rather than as parts of bookbinding machinery.
Latvia hosts several specialized precision-engineering and metalworking firms that supply components to European binding-equipment OEMs, and some finished parts are exported directly to the US market. Its presence reflects the broader Eastern European role in supplying machined components to Western European capital-goods manufacturers.
Subheading 2 of 2 in heading 8440
Subheading 844090 · $6.3M of $15.4M
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 |
|---|---|---|---|---|---|
| 8440900000 | Parts for Bookbind Mach, Inc Book-Sew Machines | $6.3M | 7.39% | 99.06% | $465K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8440900000 | Parts for Bookbind Mach, Inc Book-Sew Machines | $494K |
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.
Trade Directory
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ImportsExports
Imports
$6.3MYoY · free account
Exports
$494KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $52.1M of Parts for Bookbinding Machinery, Including Parts for Book-Sewing Machines and exported $8.8M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Switzerland and Japan together supply 67% of it.
customs district
destination
entry
rate provision · imports
0.9% enters free of duty; duty collected equals 7.39% of imports for consumption.