Harmonized Tariff Schedule of the United States · HTS code · HS 3917.40

3917.40.00

3917.40.00: Tubes, pipes and hoses and fittings therefor: fittings

Plastic pipe fittings

Not declarable on its own: use one of its 7 subdivisions Data: Harmonized Tariff Schedule of the United States · checked on 24 October 2026

  1. 3917 Tubes, pipes and hoses and fittings therefor (for example, joints, elbows, flanges), of plastics:
  2. 3917.40.00 Fittings

What you pay

Importing into USA

Customs duty 5.3% standard rate depends on the country of origin
Additional duties and charges 1 additional measure
VAT no federal VAT; a Merchandise Processing Fee of 0.3464 % is charged on formal entries
Duty calculatorCalculate duty and taxes →

US additional duties of HTS chapter 99 in force on 22 October 2026 are included (Section 301, 232, 338 and 201). IEEPA duties are no longer collected after the Supreme Court ruling of February 2026. Conditional exemptions (US content, end use, metal share) are not computed: check the provision.

Additional duties and import rules

Charges on top of the customs duty, and rules the goods must meet at the border.

Additional duties and charges 1

  • Additional dutySection 301 — China — technology transfer, IP and innovation (2018 actions and 2024 four-year review) 25%
    Applies to goods from
    China
    In force
    from 23 August 2018
    Legal act
    HTSUS 9903.88.02

Preferential rates by country

Agreement or schemeCountriesRate
General (MFN)—5.3%
US–Australia FTA AUAustraliaFree
US–Bahrain FTA BHBahrainFree
US–Chile FTA CLChileFree
US–Colombia TPA COColombiaFree
US–Israel FTA ILIsraelFree
US–Jordan FTA JOJordanFree
US–Korea FTA KRSouth KoreaFree
US–Morocco FTA MAMoroccoFree
US–Oman FTA OMOmanFree
CAFTA-DR PCosta Rica, Dominican Republic, El Salvador, Guatemala, Honduras, NicaraguaFree
US–Panama TPA PAPanamaFree
US–Peru TPA PEPeruFree
USMCA SCanada, MexicoFree
US–Singapore FTA SGSingaporeFree
Column 2Cuba, North Korea, Russia, Belarus80%

Special: reduced rates under trade agreements and preference programmes; the letters in brackets name the programmes (for example AU = Australia FTA, KR = Korea FTA).

Subdivisions

  1. 3917.40.00 Fittings 5.3%
  2. 3917.40.00.10 For brake hoses for the vehicles of subheadings 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29 or headings 8702, 8703, 8704, 8705 or 8711 kg
  3. 3917.40.00.20 Of polyvinyl chloride kg
  4. 3917.40.00.30 Of acrylonitrile-butadiene-styrene kg
  5. 3917.40.00.50 Other kg
  6. 3917.40.00.60 Of polyvinyl chloride kg
  7. 3917.40.00.80 Other kg
  8. 3917.40.00.95 Other kg

Same subheading in other tariffs

3917.40 Tubes, pipes and hoses, and fittings therefor: fittings

Binding rulings for similar goods

Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.

  • N346612 U.S. CBP 27 March 2025 · 3917.40.00.20

    The tariff classification of plastic and stainless-steel couplings from Thailand

  • N344592 U.S. CBP 18 December 2024 · 3917.40.00.95

    The tariff classification of a maple syrup extraction kit from China

  • N337783 U.S. CBP 9 February 2024 · 3917.40.00.95

    The tariff classification of items used for hobby maple syrup production imported from China

  • N326830 U.S. CBP 19 July 2022 · 3917.40.00.90

    The tariff classification of waste and overflow half kits from Taiwan

  • N326451 U.S. CBP 22 June 2022 · 3917.40.00.90

    The tariff classification of plastic urinal flange kits from Taiwan

  • N326063 U.S. CBP 24 May 2022 · 3917.40.00.90

    The tariff classification of plastic test kit and plastic pipe fittings from China

  • N325623 U.S. CBP 27 April 2022 · 3917.40.00.90

    The tariff classification of plastic pipe and pipe fittings from Taiwan

  • H266146 U.S. CBP 31 July 2020 · 3917.40.00.90

    Application for Further Review of Protest No. 3801-14-150024; Tariff classification of reinforced silicone shapes

Legal notes

Notes

Chapter notes: Chapter 39 →

HTS code 3917.40.00 is a line of the Harmonized Tariff Schedule of the United States under HS subheading 3917.40 (tubes, pipes and hoses, and fittings therefor: fittings).

The general duty is 5.3%.

7 statistical sub-lines below it are used in the declaration.

For the same subheading, the UK duty is 6%, the EU duty is 6.5%, the Türkiye duty is 6.5%, the Canada duty is free, the Mexico duty is 7%, the Brazil duty is 0%–16%, the Argentina duty is 0%–16%, the Peru duty is free, the New Zealand duty is 5%, the Japan duty is 3.9%, the Taiwan duty is 5%–6.5%, the GCC duty is 5%, the Switzerland duty is free, the Norway duty is free, the North Macedonia duty is 6.5% and the Nigeria duty is 20%.

The United States imported goods of subheading 3917.40 worth US$800m in 2024; the largest supplier was Canada, and the United Kingdom ranked 4th with US$48m.

Questions and answers

What is the USA import duty for HTS code 3917.40.00?

The general duty in the Harmonized Tariff Schedule of the United States is 5.3%. Preferential rates for goods from agreement countries, anti-dumping duties and VAT are not included.

Is there a lower rate for 3917.40.00 under US trade agreements?

Yes. The Special column reads “Free (A, AU,B, BH,C, CL, CO,D,E, IL, JO, KR, MA, OM,P, PA, PE,S, SG)”: the letters in brackets name the agreements and programmes that grant it.

Where does the United States import these goods from?

For subheading 3917.40 as a whole, the largest supplier in 2024 was Canada (US$224m), followed by China.

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Typical products

Everyday names, not part of the legal text.