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HSChapter 73
U.S. imports of parts of articulated link chain of iron or steel (HS 731519) totaled $4.0M in April 2026, traded with 22 countries.
Importers of Parts of Articulated Link Chain of Iron or Steel paid $2.0M in duties in April 2026 — an effective duty rate of 52% on $4.0M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7315190000 | PARTS OF ARTICULATED LINK CHAIN OF IRON OR STEEL | $4.0M | 51.75% | $2.0M |
PARTS OF ARTICULATED LINK CHAIN OF IRON OR STEEL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7315190000 | PARTS OF ARTICULATED LINK CHAIN OF IRON OR STEEL | $3.1M |
PARTS OF ARTICULATED LINK CHAIN OF IRON OR STEEL
351.4K kg
ARTICLES OF IRON OR STEEL NESOI
HS 732690
STRUCTURES AND PARTS NESOI OF IRON OR STEEL
HS 730890
THREADED SCREWS AND BOLTS NESOI OF IRON OR STEEL
HS 731815
COOKING APPLIANCES ETC FOR GAS FUEL, IRON OR STEEL
HS 732111
NUTS OF IRON OR STEEL
HS 731816
TABLE, KITCHEN ETC ARTICLES & PTS, STAINLESS STEEL
HS 732393
| State | Imports | Exports | Balance |
|---|---|---|---|
| Illinois | $1.6M | $113K | -$1.5M |
| Massachusetts | $454K | $952K | +$498K |
| New York | $169K | $737K | +$569K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $144K | $1.8M | +$1.7M |
| LOS ANGELES, CA | $1.2M | $17K | -$1.2M |
| NEWARK, NJ | $454K | $139K | -$315K |