HS Heading 7307 : Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel
HEADING DEFINITION & DISAMBIGUATION
HS Heading 7307 encompasses tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel. It classifies 10 6-digit WCO subheadings within Chapter 73 under the Harmonized System [USITC HTS 2026].
Subheadings Under Heading 7307
| HS Code | WCO 6-Digit Subheading Description | Chapter | Operational Package |
|---|---|---|---|
| 7307.11 | Cast fittings, Of nonmalleable cast iron | 73 | View 7307.11 Package → |
| 7307.19 | Cast fittings, Other | 73 | View 7307.19 Package → |
| 7307.21 | Other, of stainless steel, Flanges | 73 | View 7307.21 Package → |
| 7307.22 | Other, of stainless steel, Threaded elbows, bends and sleeves | 73 | View 7307.22 Package → |
| 7307.23 | Other, of stainless steel, Butt welding fittings | 73 | View 7307.23 Package → |
| 7307.29 | Other, of stainless steel, Other | 73 | View 7307.29 Package → |
| 7307.91 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel, Other, Flanges | 73 | View 7307.91 Package → |
| 7307.92 | Other, Threaded elbows, bends and sleeves | 73 | View 7307.92 Package → |
| 7307.93 | Other, Butt welding fittings | 73 | View 7307.93 Package → |
| 7307.99 | Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel, Other, Other | 73 | View 7307.99 Package → |
DISAMBIGUATION & CLASSIFICATION GUIDE
How to Select the Correct Subheading Under Heading 7307
Commercial shipments must be declared under the exact 6-digit WCO subheading that matches physical, chemical, or processing characteristics. Review the subheading descriptions above and verify against binding CBP CROSS rulings prior to entry filing.
Official Primary Sources & Authority References
USITC HTS Heading 7307 ↗
United States International Trade Commission official Harmonized Tariff Schedule.
CBP CROSS Rulings ↗
CBP e-Rulings database for Heading 7307 precedent rulings.
WCO Nomenclature ↗
World Customs Organization Harmonized System 2022 nomenclature standard.
U.S. Census Foreign Trade ↗
U.S. Census Bureau HTS-to-NAICS concordance and Schedule B export database.
Heading 7307 Frequently Asked Questions (FAQ)
What commercial articles are grouped under HS Heading 7307?
HS Heading 7307 covers Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel, grouping 10 6-digit WCO subheadings.
How are 6-digit subheadings structured under Heading 7307?
Subheadings under Heading 7307 range from 7307.11 to 7307.90, classifying goods by processing state, origin, or material composition.
What is the representative US import duty rate for Heading 7307?
US MFN general duty rates for Heading 7307 commodities range from Duty-Free up to representative ad valorem percentages under the 2026 US HTS.
Are Section 301 tariffs applicable to goods under Heading 7307?
Section 301 additional tariffs depend on the specific 8-digit or 10-digit US HTS code and country of origin (e.g. China Lists 1–4A).
What PGA message set flags apply to Heading 7307?
Partner Government Agency flags (FDA, USDA APHIS, EPA) apply depending on the specific commodity sub-classification.
How do I distinguish between subheadings under Heading 7307?
Review WCO subheading terms and candidate descriptions. For example, unroasted vs. roasted or decaffeinated vs. non-decaffeinated.
Can goods under Heading 7307 enter duty-free under USMCA?
Yes. Goods originating in USMCA territories (US, Mexico, Canada) enter duty-free under SPI code P with a valid Certificate of Origin.
What is the Section 321 de minimis limit for Heading 7307?
Eligible import shipments valued at $800 USD or less imported by one person on one day enter duty-free under 19 U.S.C. 1321.
What documents are required for formal customs entry of Heading 7307?
Commercial Invoice, Packing List, Bill of Lading, and CBP Form 7501 are mandatory for entries exceeding $2,500 USD.
How can an importer get a binding CBP classification ruling for Heading 7307?
Importers may apply for a binding ruling via CBP National Commodity Specialist Division under 19 CFR Part 177.