Spools, cops, bobbins and similar supports
Classified under heading 3923 — chapter 39 of the US Harmonized Tariff Schedule.
General rate applies to goods from countries with normal trade relations. Special rates require a program code (USMCA, GSP, AGOA…). Column 2 applies where normal trade relations do not.
Duty calculator
Estimate the duty owed on an import under HTS 3923.40.00.
Excludes merchandise processing fees, Section 301 duties, antidumping/countervailing duties and freight. Estimates only — not customs advice.
Where this rate sits
Heading 3923 contains 4 tariff lines. The general rate on this line is 5.3%, against an average of 3.6% across the heading (range 3%–5.3%).
| Metric | This line | Heading 3923 |
|---|---|---|
| General rate | 5.3% | avg 3.6% |
| Duty-free lines | no | 0 of 4 |
| Specific-rate lines | no | 0 |
Classification path
- 3923Articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics
- 3923.40.00Spools, cops, bobbins and similar supports
All 4 tariff lines under heading 3923
Heading overview →| HTS code | Description | General | Col. 2 |
|---|---|---|---|
| 3923.21.00 | Of polymers of ethylene | 3% | 80% |
| 3923.30.00 | Carboys, bottles, flasks and similar articles | 3% | 80% |
| 3923.40.00 | Spools, cops, bobbins and similar supportsthis page | 5.3% | 80% |
| 3923.90.00 | Other | 3% | 80% |
Using HTS 3923.40.00 correctly
A ten-digit HTS number has three parts: the four-digit heading, the six-digit international subheading shared by every WTO member, and the two-digit US statistical suffix. 3923.40.00 is a US national line — the same product may carry a different suffix in the EU TARIC or in another country's tariff.
Classification is determined by the General Rules of Interpretation, not by what the product is called on the invoice. If your goods could fall in two headings, GRI 1 sends you to the heading with the most specific description; GRI 3 breaks ties by essential character. A GRI 3(b) mistake is the single most common reason an entry gets reclassified and billed for unpaid duty plus interest.