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Final classification and duty determinations are made by U.S. Customs and Border Protection (CBP). Users are responsible for verifying classifications and duties prior to importation.

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This service provides structured tariff data derived from publicly available U.S. government sources. It does not:

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All data is provided "as is." Users remain solely responsible for the legal accuracy of their customs declarations and compliance decisions.

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HTS 7307.93.90 Tariff

HTS 7307.93.90 classifies "With an inside diameter of <il>360 mm</il> or more" in the US Harmonized Tariff Schedule. Base duty rates below apply to most trade; country of origin can change applicable rates and add additional duties (e.g. Section 301). Use the calculator or API to compute total duty.

  • Type: Base HTS
  • How to use: Base rates apply to most countries (General/Special). Column 2 applies to non-MFN countries. Additional duties (Section 301, 232, IEEPA) may apply by origin; use the calculator or resolve API to get the full picture.
Open Calculator Resolve via API Back to HTS Search

Related explainers:

Chapter 99 Section 301 Section 232 IEEPA

Official HTS Description

Official product classification and description from the Harmonized Tariff Schedule

Product Name

With an inside diameter of <il>360 mm</il> or more

HTS Schedule Description

With an inside diameter of <il>360 mm</il> or more

Additional Description

With an inside diameter of <il>360 mm</il> or more

HS Code

7307.93.90

HTS Number

7307.93.90

Classification Level

Level 3 (more specific = higher level)

View Official HTS Schedule

Legal Notes & Requirements

Important footnotes and legal requirements for this HTS classification

Endnote See 9903.88.03.
general

See 9903.88.03.

Applies to columns: general
Type: Endnote
Endnote See U.S. note 16 to subchapter III, chapter 99.
general

See U.S. note 16 to subchapter III, chapter 99.

Applies to columns: general
Type: Endnote
Note: These legal notes and footnotes are from the official HTS Schedule and may affect classification, duty rates, or import requirements. Click to expand each note for full details.

Additional Duties (Section 301, 232, etc.)

Country-specific additional tariffs separate from base rates

Show uncertain measures
Clear

Section 301 Uncertain

Trade remedies targeting specific countries

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Applies to: CN

Effective date unknown

Confidence: High (chapter_99_prefix: 9903.88)

Unknown Additional Duty Uncertain

Additional trade measures

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text; Reference to a Chapter 99 code without specific details on authority, country, or modifications.)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text; Reference to a Chapter 99 code without specific details on authority, country, or modifications)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text; Reference to a Chapter 99 code without specific details on authority, country, or modifications.)

9903.88.03 Reference

See 9903.88.03

Note: Rate not specified in source. Research Chapter 99 code for exact rate.

Effective date unknown

Confidence: Low (Authority could not be determined from text; manual classification needed; No explicit country scope found in text; Reference to Chapter 99 code without specific details on authority or modifications)

Important: These additional duties are separate from base tariff rates and are NOT automatically summed. Always verify with official sources before making import decisions.
Tip: Select a country of origin above to see which measures apply.

Related HTS Codes

Other codes in the same chapter ( 7307)

7307
Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:
7307.11.00
Of nonmalleable cast iron
General Rate: 4.8%
7307.11.00.30
For threaded pipe
7307.11.00.45
For cast-iron soil pipe
7307.11.00.60
Other (7307.11.00.60)
7307.19
Other:
7307.19.30
Ductile fittings
General Rate: 5.6%
7307.19.30.40
Grooved-end fittings (including grooved couplings)
7307.19.30.60
Threaded
7307.19.30.70
With mechanical, push-on (rubber compression) or flanged joints attached
7307.19.30.85
Other (7307.19.30.85)
7307.19.90
Other (7307.19.90)
General Rate: 6.2%

Showing up to 12 related codes. Search all HTS codes for more.

Frequently Asked Questions

What is this HTS code?

This is a US Harmonized Tariff Schedule (HTS) code that classifies "With an inside diameter of <il>360 mm</il> or more". It determines base duty rates for imports; additional duties may apply by country of origin.

Does origin affect duty?

Yes. General and Special rates apply by trade agreement and origin. Additional duties (Section 301, 232, IEEPA) are origin-specific. Use the tariff calculator or resolve API with an origin to see full duty.

How do I compute total duty?

Use our tariff calculator (with HTS and optional origin) or the API endpoint GET /api/v1/tariffs/resolve with hts and origin. The API returns base tariffs and additional measures separately; sum as needed for your use case.

Duty rates (HTS columns)

Base duty rates and agreement-specific tariffs for this product

Column 1 - General

Normal Trade Relations (NTR/MFN) rates for most countries

4.3%

Effective: February 02, 2026

Column 1 - Special

No special rate available

Column 2

Higher rates for non-MFN countries

45%

Effective: November 19, 2025

Quick Actions

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Recent Changes

45.0% → 45.0%

3 months ago

4.3% → 4.3%

3 months ago