HEADING 7307

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel:

Part of Chapter 73 — Articles of Iron or Steel, Section XV.

Subheadings and tariff lines

7307D01Cast fittings:

7307.11.00Of nonmalleable cast iron 7307.11.00.30For threaded pipe

7307.11.00D02Other:

7307.11.00.45For cast-iron soil pipe 7307.11.00.60Other 7307.19Other: 7307.19.30Ductile fittings 7307.19.30.40Grooved-end fittings (including grooved couplings)

7307.19.30D03Other:

7307.19.30.60Threaded 7307.19.30.70With mechanical, push-on (rubber compression) or flanged joints attached 7307.19.30.85Other 7307.19.90Other 7307.19.90.30Unions

7307.19.90D04Other:

7307.19.90.40Grooved-end fittings (including grooved couplings)

7307.19.90.30D05Other:

7307.19.90.60Threaded 7307.19.90.80Other

7307D06Other, of stainless steel:

7307.21Flanges: 7307.21.10.00Not machined, not tooled and not otherwise processed after forging 7307.21.50.00Other 7307.22Threaded elbows, bends and sleeves: 7307.22.10.00Sleeves (couplings) 7307.22.50.00Other 7307.23.00Butt welding fittings 7307.23.00.30Not machined, not tooled and not otherwise processed after forming 7307.23.00.90Other 7307.29.00Other 7307.29.00.30Nipples 7307.29.00.90Other

7307D07Other:

7307.91Flanges:

7307.91D08Not machined, not tooled and not otherwise processed after forging:

7307.91.10.00Of iron or nonalloy steel 7307.91.30.00Of alloy steel (except stainless steel) 7307.91.50Other

7307.91.50D09With an inside diameter of less than 360 mm:

7307.91.50.10Of iron or nonalloy steel 7307.91.50.30Of alloy steel (except stainless steel)

7307.91.50D10With an inside diameter of 360 mm or more:

7307.91.50.50Of iron or nonalloy steel 7307.91.50.70Of alloy steel (except stainless steel) 7307.92Threaded elbows, bends and sleeves: 7307.92.30Sleeves (couplings) 7307.92.30.10Of iron or nonalloy steel 7307.92.30.30Of alloy steel (except stainless steel) 7307.92.90.00Other 7307.93Butt welding fittings:

7307.93D11With an inside diameter of less than 360 mm:

7307.93.30Of iron or nonalloy steel 7307.93.30.10Not machined, not tooled and not otherwise processed after forging 7307.93.30.40Other 7307.93.60.00Of alloy steel (except stainless steel) 7307.93.90With an inside diameter of 360 mm or more

7307.93.90D12Of iron or nonalloy steel:

7307.93.90.10Not machined, not tooled and not otherwise processed after forging 7307.93.90.40Other 7307.93.90.60Of alloy steel (except stainless steel) 7307.99Other:

7307.99D13Not machined, not tooled and not otherwise processed after forging:

7307.99.10.00Of iron or nonalloy steel 7307.99.30.00Of alloy steel (except stainless steel) 7307.99.50Other

7307.99.50D14Of iron or nonalloy steel:

7307.99.50.15Nipples 7307.99.50.45Other 7307.99.50.60Of alloy steel (except stainless steel)

Recent CBP rulings on heading 7307

N362609 July 21, 2026

Application for Further Review of Protest No. 0712-13-100009; Classification of SuperSand Filter Components

N346364 March 28, 2025

The tariff classification of items used in the production of oil and gas from China

H342446 March 11, 2025

National Oilwell Varco Request for Internal Advice; 19 C.F.R. § 177.11; Tariff Classification of PFT Hub and Cap System

N343418 November 15, 2024

A country of origin determination for purposes of eligibility under USMCA, for purposes of applicability of Trade Remedy Section 301, and for marking purposes of flanges and fittings from China, Italy, and India

N332307 May 8, 2023

The tariff classification of cast iron meter flanges from China

H320950 January 23, 2023

Revocation of NY B87364; Modification of NY 898504, NY N118077, HQ 967490, NY J82246, and NY B85728; Tariff classification of various pipe fittings

H324542 January 11, 2023

Request for Internal Advice; Classification of Disposable Plastic Connectors

N329384 December 7, 2022

The tariff classification of electrical conduit fittings from China

Classifying products under 7307?

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