Heading 8406

HTS code 8406 — Steam turbines and other vapor turbines, and parts thereof

Chapter
84 — Machinery and mechanical appliances
Tariff lines
19
General duty
General duty rates from 5% to 6.7%, with 7 duty-free lines

Tariff lines under heading 8406

Full 10-digit codes with their general (MFN) duty rates. The correct line depends on the product's material, construction, and use.

HTS codeDescriptionGeneral rateUnit
8406.10.1000Steam turbines (Steam turbines and other vapor turbines, and parts thereof > Turbines for marine propulsion)6.7%No.
8406.10.9000Other (Steam turbines and other vapor turbines, and parts thereof > Turbines for marine propulsion)FreeNo.
8406.81.1020Stationary steam turbines, condensing type (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output exceeding 40 MW > Steam turbines)6.7%No.
8406.81.1070Other (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output exceeding 40 MW > Steam turbines)6.7%No.
8406.81.9000Other (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output exceeding 40 MW)FreeNo.
8406.82.1010Not exceeding 7,460 kW (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output not exceeding 40 MW > Steam turbines > Stationary steam turbines, condensing type)6.7%No.
8406.82.1020Exceeding 7,460 kW (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output not exceeding 40 MW > Steam turbines > Stationary steam turbines, condensing type)6.7%No.
8406.82.1050Not exceeding 7,460 kW (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output not exceeding 40 MW > Steam turbines > Other)6.7%No.
8406.82.1070Exceeding 7,460 kW (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output not exceeding 40 MW > Steam turbines > Other)6.7%No.
8406.82.9000Other (Steam turbines and other vapor turbines, and parts thereof > Other turbines > Of an output not exceeding 40 MW)FreeNo.
8406.90.2000Rotors, finished for final assembly (Steam turbines and other vapor turbines, and parts thereof > Parts > Of steam turbines)5%No.
8406.90.3000Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery (Steam turbines and other vapor turbines, and parts thereof > Parts > Of steam turbines)5%No.
8406.90.4000Blades, rotating or stationary (Steam turbines and other vapor turbines, and parts thereof > Parts > Of steam turbines)5%No.
8406.90.4540Rotors or spindles and rotor or spindle assemblies (Steam turbines and other vapor turbines, and parts thereof > Parts > Of steam turbines > Other)5%No.
8406.90.4580Other (Steam turbines and other vapor turbines, and parts thereof > Parts > Of steam turbines > Other)5%kg
8406.90.5000Rotors, finished for final assembly (Steam turbines and other vapor turbines, and parts thereof > Parts > Other)FreeNo.
8406.90.6000Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery (Steam turbines and other vapor turbines, and parts thereof > Parts > Other)FreeNo.
8406.90.7000Blades, rotating or stationary (Steam turbines and other vapor turbines, and parts thereof > Parts > Other)FreeNo.
8406.90.7500Other (Steam turbines and other vapor turbines, and parts thereof > Parts > Other)Freekg

Documents required to import under 8406

Customs paperwork typically required to import these goods into the United States. Conditional items depend on shipment value, transport mode, or origin.

  • Commercial InvoiceRequired
  • Packing ListRequired
  • Bill of Lading / Airway BillRequired
  • CBP Entry Summary (7501)Required

    Prepared and filed by your customs broker

  • CBP Entry / Release (3461)Required

    Prepared and filed by your customs broker

  • Customs Bond (CBP 301)Conditional

    Required for formal entries — generally shipments valued over $2,500

    Single-entry or continuous bond, obtained through your broker or a surety

  • Importer Security Filing (ISF "10+2")Conditional

    Required for ocean freight only

    Filed electronically at least 24 hours before loading at the foreign port

  • Importer ID Input Record (CBP 5106)Conditional

    Required to establish or update your importer-of-record number with CBP

    One-time setup for a new importer; not filed per shipment

  • Entry Manifest (CBP 7533)Conditional

    Alternative to the 3461 for informal, low-value, or contiguous-country entries

  • FCC Declaration (Form 740)Conditional

    Required for electronic devices that emit radio frequency

  • FDA Radiation Declaration (Form 2877)Conditional

    Required for products that emit radiation (X-ray, laser, microwave, etc.)

Common questions

What is HTS code 8406?
HTS heading 8406 covers steam turbines and other vapor turbines, and parts thereof. It sits in Chapter 84 (machinery and mechanical appliances) of the US Harmonized Tariff Schedule and contains 19 tariff lines.
What is the duty rate for HTS 8406?
General duty rates from 5% to 6.7%, with 7 duty-free lines. The general rate applies to most-favoured-nation trading partners; goods from countries with a free trade agreement may qualify for a reduced or duty-free special rate.
How many digits does a full HTS code have?
US import entries require the full 10-digit HTS code. Heading 8406 is the first four digits — the remaining six narrow it down to the specific product, which is what determines the duty rate you actually pay.

Related headings in Chapter 84