Q3HSN Code 8401
Nuclear reactors; fuel elements (cartridges)
Nuclear reactors; fuel elements (cartridges), non-irradiated, for nuclear reactors; machinery and apparatus for isotopic separation
GST rate
Rate depends on the exact product — see Notification 9/2025-Central Tax (Rate).
Codes under 8401
| Code | Description | GST rate |
|---|---|---|
| 8401 10 | Nuclear reactors | Varies |
| 8401 20 | Machinery and apparatus for isotopic separation, and parts thereof | Varies |
| 8401 30 | Fuel elements (cartridges), nonirradiated | Varies |
| 8401 40 | Parts of nuclear reactors | Varies |
← Chapter 84: Machinery, engines and mechanical appliances
Related HSN codes
8402Steam or other vapour generating boilers8487Machines parts, not containing electrical connectors8403Central heating boilers other than thoseof heading 84028486Machines and apparatus of a kind used solely or pricipally8404Auxiliary plant for use with boilers of heading 84028485Machines for additive manufacturing
Frequently Asked Questions
What is the HSN code for nuclear reactors; fuel elements (cartridges)?
The HSN code for nuclear reactors; fuel elements (cartridges) is 8401, under Chapter 84 (Machinery, engines and mechanical appliances).
What is the GST rate on nuclear reactors; fuel elements (cartridges)?
It depends on the exact product under HSN code 8401; see 9/2025-Central Tax (Rate).
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.