HS Code 9033
Parts and Accessories for Scientific Instruments
HS code 9033 covers parts and accessories for machines, appliances, and instruments of Chapter 90 that are not specified or included elsewhere in the chapter.
HS Code 9033 — Parts and Accessories for Scientific Instruments
This code acts as a 'basket' category for parts and accessories used with optical, medical, measuring, or precision instruments. It is specifically for components that are indispensable to a device's function but are not explicitly named elsewhere in Chapter 90. Typical uses include bespoke mounting brackets, specialised housings, or mechanical connectors for laboratory equipment.
What's included
- Custom instrument housings
- Mechanical parts for medical devices
- Mounting hardware for optical apparatus
- Specialised base plates for measuring tools
What's excluded
- Screws and general purpose hardware → use
7318(General use fasteners are classified by material (steel).) - Lenses and prisms → use
9001(Optical elements are specifically listed in 9001.)
Common examples
- Protective casing for a laser measurement tool
- Mechanical arm for a laboratory microscope
- Adjustable stand for a surgical lamp
Frequently asked questions
Can I use 9033 for any spare part?
No, you must first check if the part is specifically named in another heading of Chapter 90 or consists of general-purpose parts like rubber o-rings or steel screws.
Trade & shipping notes
- Typical duty range: 0% - 5%
- Documentation: Technical drawings may be required to prove the part is exclusively for a Chapter 90 instrument.
- Typical shipping mode: LCL
- Top exporters: Germany, United States, China, Japan
- Top importers: United States, Germany, China
Related HS codes
Key takeaway
Use this code only when a part for a precision instrument cannot be found in any other Chapter 90 heading.
Related HS codes
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