| 8431 | | Parts suitable for use solely or principally with the machinery of headings 8425 to 8430: | | | | |
| 8431.10.00 | | Of machinery of heading 8425 | | Free | | 35% |
| 8431.10.00 | 10 | Of machinery of subheading 8425.11 or 8425.19 | X | | | |
| 8431.10.00 | 90 | Other | X | | | |
| 8431.20.00 | 00 | Of machinery of heading 8427 | X | Free | | 35% |
| 8431.31.00 | | Of machinery of heading 8428: | | | | |
| 8431.31.00 | | Of passenger or freight elevators other than continuous action, skip hoists or escalators | | Free | | 35% |
| 8431.31.00 | 40 | Of escalators | X | | | |
| 8431.31.00 | 60 | Other | X | | | |
| 8431.39.00 | | Other | | Free | | 35% |
| 8431.39.00 | 10 | Of elevators and conveyors | X | | | |
| 8431.39.00 | 50 | Other: | | | | |
| 8431.39.00 | 50 | Of oil and gas field machinery | X | | | |
| 8431.39.00 | 70 | Of the woodland log handling equipment of statistical reporting number 8428.90.0110 | X | | | |
| 8431.39.00 | 80 | Other | X | | | |
| 8431.41.00 | 40 | Clamshell (grappler) attachments | No. | | | |
| 8431.41.00 | 60 | Dragline buckets | No. | | | |
| 8431.41.00 | 80 | Other | No. | | | |
| 8431.41.00 | | Buckets, shovels, grabs and grips | | Free | | 35% |
| 8431.41.00 | 20 | Shovel attachments | No. | | | |
| 8431.41.00 | | Of machinery of heading 8426, 8429 or 8430: | | | | |
| 8431.42.00 | 00 | Bulldozer or angledozer blades | No. | Free | | 35% |
| 8431.43 | | Parts for boring or sinking machinery of subheading 8430.41 or 8430.49: | | | | |
| 8431.43.40 | 00 | Of offshore oil and natural gas drilling and productions platforms | X | Free | | 45% |
| 8431.43.80 | | Other | | Free | | 35% |
Harmonized Tariff Schedule of the United States inquiry: 534
