Harmonized System
U.S. imports of parts of articulated link chain of iron or steel (HS 731519) totaled $3.5M in August 2026, imported from 26 countries.
Importers of Parts of Articulated Link Chain of Iron or Steel paid $1.9M in duties in August 2026, an effective tariff rate of 55.56% of the $3.5M imported — duty actually collected as a share of that value, not the published tariff schedule. Parts of Articulated Link Chain of Iron or Steel imports of $3.5M in August 2026 ran 14% below the year-to-date monthly average of $4.0M.
Last updated: August 2026 dataConnecting links, master links, repair links, and other discrete components designed for use in articulated link chain assemblies are captured here, separate from complete chain under 731511 and 731512. The entire subheading consolidates into one 10-digit line (7315190000), and China is the dominant supplier, followed by Japan and Taiwan — a supplier profile that reflects the concentration of chain component manufacturing in East Asia. Section 301 tariffs apply to Chinese-origin parts, creating an incentive to source from Japan or Taiwan for cost-sensitive applications. Correct classification requires confirming that the article is a part of articulated link chain rather than a fastener or coupling that might classify elsewhere in Chapter 73 or Chapter 83.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
278 shipments/mo
If a connecting link is marketed and used primarily as a general fastener or coupling — rather than as a replacement component for an articulated chain assembly — it may classify under a fastener heading in Chapter 73 or Chapter 83 rather than under 731519. The intended use, product design, and commercial documentation (catalog descriptions, invoices) are the key factors CBP considers. A binding ruling is advisable when the article has dual-use potential.
Section 301 tariffs are assessed on the imported article as classified at the time of entry. If the chain parts are imported separately, they are assessed as parts under 731519. If they are already assembled into a complete chain, the entry is classified as chain under 731511 or 731512. Importers should not assume that assembly outside China eliminates Section 301 exposure — substantial transformation rules and CBP's country-of-origin analysis for the finished chain will determine the applicable origin.
HSChapter 73
Trade Directory
List your company under HS 731519 — Parts of Articulated Link Chain of Iron or Steel, so the companies trading it can find you. Be the first supplier listed.
Subheading 5 of 8 in heading 7315
Subheading 731519 · $3.5M of $46.1M
ImportsExports
Imports
$3.5MYoY · free account
Exports
$2.6MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $51.5M of Parts of Articulated Link Chain of Iron or Steel.
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 | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7315190000 | Parts of Articulated Link Chain of Iron or Steel | $3.5M | 55.56% | 101.57% | $1.9M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7315190000 | Parts of Articulated Link Chain of Iron or Steel | $2.6M |
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.
Imports · August 2026
origin
Japan and Taiwan together supply 47% of it. China pays 75.0% duty; Japan 50.0%.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; duty collected equals 55.56% of total import value.