This directory combines historical reference rows with separately labelled national sources. Read the source title, observation date, printed units and conditions on each entry. National source observations do not establish all measures applicable to a shipment.

United States Customs Tariff for HS Code 901730

Mathematical equipment; micrometers, callipers and gauges

USITC 2026 HTS Revision 19

26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.

Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.

Official schedule and source documentation

Official entries matching 901730

9017.30.40.00

Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, calipers), not specified or included elsewhere in this chapter; parts and accessories thereof: › Micrometers, calipers and gauges:

Micrometers and calipers

Source units: No.

Column 1 — General: 5.8%
Column 1 — Special (eligibility required): Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2: 45%

Official source for this code

9017.30.80.00

Other

Source units: No.

Column 1 — General: 3.9%
Column 1 — Special (eligibility required): Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2: 45%

Official source for this code

WITS 2023 historical MFN average

Reported average: 4.85000038146973%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 2 of 2. Excluded from the average: 0.

Reported ad-valorem range: 3.90000009536743%–5.80000019073486%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 901730: 4.85% (2023 MFN average)

The source reports an indicative HS6 MFN average of 4.85% (2023 MFN average) for Mathematical equipment; micrometers, callipers and gauges.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

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Customs tariff summary

Country: United States
HS / tariff code: 901730
Description: Mathematical equipment; micrometers, callipers and gauges
Chapter: 90 —
Heading: 9017
Subheading: 901730
Indicative MFN HS6 average: 4.85% (2023 MFN average)
VAT / tax: Check local VAT and excise rules for the import destination.
Unit / basis: Not listed in this tariff line
Source / vintage: WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

4.85% (2023 MFN average)

Import permission

not assessed

Import planning

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Details

HS Code: 901730
Chapter: 90 —
Heading: 9017
Subheading: 901730

Compare HS code 901730 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 901730 United Arab EmiratesSearch parent HS 901730 OmanSearch parent HS 901730 QatarSearch parent HS 901730 KuwaitSearch parent HS 901730 BahrainSearch parent HS 901730

Related HS Codes (Heading 9017)

HS Code	Description	Duty
901710	Drafting tables and machines; whether or not automatic	1.95% (2023 MFN average)WITS 2023 historical MFN average
901720	Drawing, marking-out or mathematical calculating instruments	2.83% (2023 MFN average)WITS 2023 historical MFN average
901780	Mathematical instruments and equipment; n.e.c. in heading no. 9017	5.30% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.