What is HSN Code 90251990?
HSN code 90251990 is the Harmonized System of Nomenclature classification for Hydrometers And Similar Floating Instruments, Thermometers, Pyrometers, Barometers,… under India's Goods and Services Tax (GST). It is a 8-digit code sitting at the tariff item (8-digit) level of the HSN hierarchy.
This code belongs to Chapter 90 — Optical, Photographic, Cinematographic, Measuring, Checking,…, which is part of Section XVIII: Optical, Medical & Precision Instruments. Every GST-registered business supplying hydrometers and similar floating instruments, thermometers, pyrometers, barometers,… must quote HSN 90251990 (or the digit-length required for its turnover) on tax invoices and in GSTR-1.