# United States tariff lines under HS 5509.12

> The United States tariff splits HS 5509.12 (yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale, containing 85 % or more by weight of staple fibres of nylon or other polyamides: Multiple (folded) or cabled yarn) into 1 national line: 5509.12.00.00 (multiple (folded) or cabled yarn (604)). The general (MFN) duty is 10.6% on this line.

Source: https://border.bot/countries/united-states/hs-codes/550912
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 55](https://border.bot/countries/united-states/hs-codes/55) / [5509.12](https://border.bot/countries/united-states/hs-codes/550912)

## Key facts

- HS subheading: [5509.12](https://border.bot/hs-codes/550912)
- Duty (MFN): 10.6%
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 55: Man-made staple fibres

## United States lines under 5509.12

The United States tariff splits HS 5509.12 (yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale, containing 85 % or more by weight of staple fibres of nylon or other polyamides: Multiple (folded) or cabled yarn) into 1 national line: 5509.12.00.00 (multiple (folded) or cabled yarn (604)).

The general (MFN) duty is 10.6% on this line.

- [5509.12.00.00](https://border.bot/countries/united-states/hs-codes/5509120000) Containing 85 percent or more by weight of staple fibers of nylon or other polyamides, Multiple (folded) or cabled yarn (604). Duty (MFN): 10.6%

## In other countries

No other national tariff on border.bot has live lines under 5509.12 yet.

- [The Harmonized System text for 5509.12](https://border.bot/hs-codes/550912)

- Previous subheading: [5509.11](https://border.bot/countries/united-states/hs-codes/550911) Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale
- Next subheading: [5509.21](https://border.bot/countries/united-states/hs-codes/550921) Yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 5509.12?

The United States tariff splits HS 5509.12 (yarn (other than sewing thread) of synthetic staple fibers, not put up for retail sale, containing 85 % or more by weight of staple fibres of nylon or other polyamides: Multiple (folded) or cabled yarn) into 1 national line: 5509.12.00.00 (multiple (folded) or cabled yarn (604)).

### What is the duty on HS 5509.12 in the United States?

The general (MFN) duty is 10.6% on this line.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/550912.json