Chapter 84, Machinery and mechanical appliances / Heading 8473

HTS 8473.30.51.00: Computer machine parts

Schedule text: Other. Classification: Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472 › Parts and accessories of the machines of heading 8471 › Not incorporating a cathode ray tube › Other

General rate of duty

Free

Column 1, USITC schedule

From China, all in

7.5%

Priced live by the Gateway engine

Section 301 China

7.5%

List 4A

Forced labor 301

exempt

9903.05.86

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.

ProgramRateAmount
General rate of duty (Column 1)
Official rate: Free
8473.30.51.00
0%$0.00
Section 301 China (List 4A)
7.5%$750.00
Effective duty rate
7.5%$750.00

Checked and not applied

  • Section 301 forced labor: Exempt: HTS listed under 9903.05.86 (U.S. note 52)
  • Section 232: Section 232 semiconductor duty (proclamation of Jan 14, 2026, effective Jan 15, 2026): 25% applies ONLY to advanced computing accelerators meeting the TPP/DRAM-bandwidth thresholds — covered articles enter under HTSUS 8471.50 / 8471.80 / 8473.30 with HTSUS 9903.79.01. Standard logic, memory, and analog chips under 8542 and ordinary computer units/parts are NOT subject. Exemptions: US data centers (9903.79.03), repair/replacement (9903.79.04), R&D (9903.79.05), startups (9903.79.06), consumer electronics (9903.79.07), civil industrial (9903.79.08), public sector (9903.79.09). Not auto-applied: the technical thresholds cannot be determined from the HTS code alone.

Stack priced from China on a $10,000 customs value, ocean entry. Other origins carry different programs; the calculator prices any of them.

Questions about this example

What is HTS code 8473.30.51.00?
HTS 8473.30.51.00 covers computer machine parts; the schedule's own line text is "Other". Its full classification path in the Harmonized Tariff Schedule of the United States is: Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472 › Parts and accessories of the machines of heading 8471 › Not incorporating a cathode ray tube › Other. It sits in chapter 84 (Machinery and mechanical appliances) under heading 8473.
What is the general duty rate for HTS 8473.30.51.00?
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 8473.30.51.00 from China?
Priced on $10,000 of goods, the effective duty from China is 7.5%: 0% general rate + 7.5% Section 301. Section 301 applies (List 4A). Forced-labor duty: Exempt: HTS listed under 9903.05.86 (U.S. note 52).
Which lines are related to HTS 8473.30.51.00?
Neighbouring statistical lines under the same 8-digit heading are listed on this page. All lines under one 8-digit heading share the same legal duty rate; the tenth digit reports statistics.