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HTSUS, United States

8406.90.45.40

Rotors or spindles and rotor or spindle assemblies

Classification path

  1. Steam turbines and other vapor turbines, and parts thereof
  2. Parts
  3. Of steam turbines
  4. Other
  5. Rotors or spindles and rotor or spindle assemblies

Rates of duty

General (MFN)
5%
Column 2Cuba, North Korea, Russia, Belarus
20%
Unit of quantity
No.

Trade agreement rates

FreeGSP (lapsed since Dec 31, 2020), U.S.-Australia FTA, U.S.-Bahrain FTA, U.S.-Chile FTA, U.S.-Colombia TPA, AGOA (authorized through Dec 31, 2026), E, U.S.-Israel FTA, U.S.-Jordan FTA, U.S.-Japan Trade Agreement, U.S.-Korea FTA, U.S.-Morocco FTA, U.S.-Oman FTA, CAFTA-DR, U.S.-Panama TPA, U.S.-Peru TPA, USMCA, U.S.-Singapore FTA

Related lines in heading 8406

About heading 8406

Steam turbines and other vapor turbines, and parts thereof

Heading 8406 covers steam turbines and other vapor turbines, plus parts of those turbines. It separates marine propulsion turbines from other turbines, and other turbines by output over or not over 40 MW. Parts are split between parts of steam turbines and parts of other turbines.

Full guide to heading 8406

Products in this heading

  • Marine propulsion steam turbines
  • Stationary condensing steam turbines over 40 MW
  • Stationary condensing steam turbines not exceeding 40 MW
  • Steam turbine blades, rotating or stationary
  • Steam turbine rotors finished for final assembly
  • Steam turbine rotor or spindle assemblies
  • Low-output steam turbines not exceeding 7,460 kW

Frequently asked questions

What is the HTS code for a steam turbine for marine propulsion?

Steam turbines for marine propulsion are classified under 8406.10.10.00, with a general (MFN) rate of 6.7%.

What is the duty on steam turbine blades?

Blades, rotating or stationary, for steam turbines are classified under 8406.90.40.00 at a general (MFN) rate of 5%.

How do I classify a steam turbine rotor?

A rotor finished for final assembly goes under 8406.90.20.00 at a general (MFN) rate of 5%. A rotor not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery goes under 8406.90.30.00 at a general (MFN) rate of 5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 21, 2026.

HTS 8406.90.45.40: Rotors or spindles and rotor or spindle assemblies, 5% duty | HTSBase