8406.90
6-digit headingParts
This is a 6-digit heading — a category, not a filing code. Pick the more specific code beneath it that best matches your goods; only a 10-digit statistical code can be used on a customs entry.
Duty rates
No rate is published at this level — check the specific 10-digit statistical code beneath it.
| Rate | Value and what it means |
|---|---|
| General rate (Column 1) | See 10-digit codeColumn 1 general Applies to most trading partners — the standard "normal trade relations" rate. |
| Special rate (Column 1) | —Trade programs The country letters in parentheses are free trade agreement and preference programs. If your goods qualify under one of them, that rate replaces the general rate. |
| Column 2 rate | —Non-NTR Reserved for the small group of countries that do not have normal trade relations with the US (currently Cuba, North Korea, Russia and Belarus). Almost no importer uses this column — if you are shipping from anywhere else, ignore it. |
| Unit of quantity | — How CBP expects the quantity to be reported on the entry summary. |
Where this sits in the schedule
The tariff schedule is read top-down: each line inherits the wording of the categories above it.
Steam turbines and other vapor turbines, and parts thereof:
Codes within Parts
10 more specific lines fall under 8406.90.
- 8406.90.20.00Rotors, finished for final assembly10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines:5%
- 8406.90.30.00Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines:5%
- 8406.90.40.00Blades, rotating or stationary10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines:5%
- 8406.90.45Other8-digit subheadingSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines:5%
- 8406.90.45.40Rotors or spindles and rotor or spindle assemblies10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines: > Other
- 8406.90.45.80Other10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Of steam turbines: > Other
- 8406.90.50.00Rotors, finished for final assembly10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Other:Free
- 8406.90.60.00Rotors, not further advanced than cleaned or machined for removal of fins, gates, sprues, and risers, or to permit location in finishing machinery10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Other:Free
- 8406.90.70.00Blades, rotating or stationary10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Other:Free
- 8406.90.75.00Other10-digit statistical codeSteam turbines and other vapor turbines, and parts thereof: > Parts: > Other:Free
Chapter 84: Machinery and Mechanical Appliances; Parts Thereof
Browse every code in this chapter to compare neighbouring classifications.
View Chapter 84Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.
Data loaded August 18, 2026.Check this chapter on hts.usitc.govReport an error with this codeHow this data is built