| 8401.40.00 | 00 | Parts of nuclear reactors | t | 3.3% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 45% |
| 8402 | | Steam or other vapor generating boilers (other than central heating hot water boilers capable also of producing low pressure steam); super-heated water boilers; parts thereof: | | | | |
| 8402.90.00 | | Parts | | 4.3% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 45% |
| 8403 | | Central heating boilers (other than those of heading 8402) and parts thereof: | | | | |
| 8403.90.00 | 00 | Parts | X | Free | | 45% |
| 8404 | | Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof: | | | | |
| 8404.90.00 | 00 | Parts | X | 3.5% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 45% |
| 8405 | | Producer gas or water gas generators, with or without their purifiers; acetylene gas generators and similar water process gas generators, with or without their purifiers; parts thereof: | | | | |
| 8405.90.00 | 00 | Parts | X | Free | | 45% |
| 8406 | | Steam turbines and other vapor turbines, and parts thereof: | | | | |
| 8406.90 | | Parts: | | | | |
| 8409 | | Parts suitable for use solely or principally with the engines of heading 8407 or 8408: | | | | |
| 8409.91.10 | | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | | Free | | 10% |
| 8409.99.10 | | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | | Free | | 10% |
| 8410 | | Hydraulic turbines, water wheels and regulators therefor; parts thereof: | | | | |
| 8410.90.00 | 00 | Parts, including regulators | X | 3.8% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 27.5% |
| 8411 | | Turbojets, turbopropellers and other gas turbines, and parts thereof: | | | | |
| 8411.91 | | Parts: | | | | |
| 8411.91.10 | | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | | Free | | 10% |
| 8411.91.10 | 40 | Parts of nonaircraft turbines | kg | | | |
| 8411.91.10 | 60 | Parts of aircraft turbines: | | | | |
| 8411.91.90 | 40 | Parts of nonaircraft turbines | X | | | |
| 8411.91.90 | 80 | Parts of aircraft turbines | X | | | |
| 8411.99.10 | | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | | Free | | 10% |
| 8411.99.10 | 10 | Parts of nonaircraft gas turbines | X | | | |
Harmonized Tariff Schedule of the United States inquiry: gaming
