Chapter 84, Machinery and mechanical appliances / Heading 8431
HTS 8431.43.80.90: Parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, parts for boring or sinking machinery of subheading 8430.41 or 8430.49, of other boring or sinking machinery
Schedule text: Of other boring or sinking machinery. Classification: Parts suitable for use solely or principally with the machinery of headings 8425 to 8430 › Of machinery of heading 8426, 8429 or 8430 › Parts for boring or sinking machinery of subheading 8430.41 or 8430.49 › Other › Of other boring or sinking machinery
General rate of duty
Free
Column 1, USITC schedule
From China, all in
50%
Priced live by the Gateway engine
Section 301 China
25%
List 1
Forced labor 301
exempt
9903.05.90
How the rate is built
Each line is a separate legal authority. They stack on the $10,000 customs value unless a carve-out says otherwise.
| Program | Rate | Amount |
|---|---|---|
General rate of duty (Column 1) Official rate: Free 8431.43.80.90 | 0% | $0.00 |
Section 301 China (List 1) | 25% | $2,500.00 |
Section 232 Steel (Derivative) As of April 6, 2026, CBP may assess Section 232 metals duties based on US sales price rather than declared customs value. | 25% | $2,500.00 |
Effective duty rate | 50% | $5,000.00 |
Checked and not applied
- Section 301 forced labor: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52)
Stack priced from China on a $10,000 customs value, ocean entry. Other origins carry different programs; the calculator prices any of them.
Related lines
Statistical lines under the same 8-digit heading share one legal rate; the last two digits report statistics.
- 8431.43.80Other (rate line, Free)
- 8431.43.80.20Tool joints, whether or not forged
- 8431.43.80.40Drill pipe fitted with tool joints
- 8431.43.80.60Other
Questions about this example
- What is HTS code 8431.43.80.90?
- HTS 8431.43.80.90 covers parts suitable for use solely or principally with the machinery of headings 8425 to 8430, of machinery of heading 8426, 8429 or 8430, parts for boring or sinking machinery of subheading 8430.41 or 8430.49, of other boring or sinking machinery; the schedule's own line text is "Of other boring or sinking machinery". Its full classification path in the Harmonized Tariff Schedule of the United States is: Parts suitable for use solely or principally with the machinery of headings 8425 to 8430 › Of machinery of heading 8426, 8429 or 8430 › Parts for boring or sinking machinery of subheading 8430.41 or 8430.49 › Other › Of other boring or sinking machinery. It sits in chapter 84 (Machinery and mechanical appliances) under heading 8431.
- What is the general duty rate for HTS 8431.43.80.90?
- The Column 1 general rate of duty is Free. That is the most-favored-nation rate before any Section 301, Section 232, Section 338, Section 201 or antidumping and countervailing action, and before CBP's Merchandise Processing and Harbor Maintenance fees.
- What is the tariff on HTS 8431.43.80.90 from China?
- Priced on $10,000 of goods, the effective duty from China is 50%: 0% general rate + 25% Section 301 + 25% Section 232 Steel (Derivative). Section 301 applies (List 1). Forced-labor duty: Exempt: article is already subject to Section 232 duties (9903.05.90, U.S. note 52).
- Which lines are related to HTS 8431.43.80.90?
- It is a statistical line under the 8-digit rate line 8431.43.80 (Other), which has 3 other statistical lines. All lines under one 8-digit heading share the same legal duty rate; the tenth digit reports statistics.