Key Facts
Class 2651 at a Glance
Code 2651
Official title Manufacture of measuring, testing, navigating and control equipment
Version NIC 2025
Source authority MoSPI
Section C - Manufacturing
Mf
NIC 2025 MoSPI source NIC Class 2651 - Manufacture of measuring, testing, navigating and control equipment
NIC Class 2651 covers Manufacture of measuring, testing, navigating and control equipment. This is the main comparison layer for deciding which specific six-digit Sub-class best fits the real activity described in...
Hierarchy tree
265101
Manufacture of physical properties testing and inspection equipment
265102 Manufacture of automotive emissions testing equipment
265103 Manufacture of consumption meters for electricity, water or gas, flow meters and counting meters
265104 Manufacture of meteorological and environmental instruments
265105 Manufacture of radar equipment, GNSS (NavIC), search, detection, navigation, aeronautical and nautical equipment, systems parameters measurment equipments (Equipments used during realisation and operalisation) for Space craft, Launch Vehicle & Orbital Station
265106 Manufacture of laboratory analytical instruments and miscellaneous laboratory apparatus for measuring and testing such as scales, balances, incubators and similar instruments
265107 Manufacture of industrial process control equipment
265199 Manufacture of other measuring, testing, navigating and control equipment n.e.c.such as polygraph machines, radiation detection and monitoring instruments, sensors and sensing equipment
Practical Summary
What Class 2651 Covers
Class 2651 is the final decision layer before six-digit Sub-classes such as undefined undefined, undefined undefined, undefined undefined, undefined undefined and 4 more. Compare the child pages before using a code in a filing.
Where Used In Practice
Where Class 2651 Is Used
Class 2651 is used when the final six-digit code is not obvious and official notes or child Sub-classes need to be compared.
- Udyam and MSME code research
- Company or LLP registration preparation
- Business activity shortlisting before filing
- Internal classification and vendor profiling
How To Choose
How to Narrow Down From Class 2651
Review every child Sub-class under Class 2651. If the wording is still broad, open the six-digit child pages before using a code in registration.
Official note
Class note from the source layer
This class comprises manufacture of search, detection, navigation, guidance, aeronautical, and nautical systems and instruments; automatic controls and regulators for applications, such as heating, air- conditioning, refrigeration and appliances; instruments and devices for measuring, displaying, indicating, recording, transmitting, and controlling temperature, humidity, pressure, vacuum, combustion, flow, level, viscosity, density, acidity, concentration, and rotation; totalizing (i.e., registering) fluid meters and counting devices; instruments for measuring and testing the characteristics of electricity and electrical signals; instruments and instrumentation systems for laboratory analysis of the chemical or physical composition or concentration of samples of solid, fluid, gaseous, or composite material; other measuring and testing instruments and parts thereof. The manufacture of non-electric measuring, testing and navigating equipment (except simple mechanical tools) is included here. This class excludes: - manufacture of telephone answering machines, see 263 - manufacture of irradiation equipment, see 267 - manufacture of optical positioning equipment, see 268 - manufacture of dictating machines, see 2817 - manufacture of weighing machinery (other than sensitive laboratory balances), levels, tape measures etc., see 2819 - manufacture of medical thermometers, see 3250 - installation of industrial process control equipment, see 3320
In this section
2651
2652 Manufacture of measuring, testing, navigating and control equipment
Manufacture of watches and clocks
Common Questions About NIC 2651
Which businesses fall under NIC 2651?
Start here when the business belongs to manufacture of measuring, testing, navigating and control equipment and then compare child entries such as undefined undefined, undefined undefined, undefined undefined, undefined undefined and 4 more.
Is NIC 2651 a final filing code?
No. This is a hierarchy page. Continue to the six-digit Sub-class before using a code in registration or compliance records.
How do I verify that NIC 2651 is correct before filing?
Check the parent hierarchy, compare 2652 Manufacture of watches and clocks, and confirm that the official title matches the main revenue activity. For regulated or filing-critical decisions, verify the source row in the MoSPI dataset.
What happens if I use the wrong NIC code in Udyam or MCA registration?
A wrong code can cause mismatched business descriptions, follow-up questions or later compliance cleanup. It is better to compare nearby codes before filing than to correct a weak classification later.
Is there a legacy NIC 2008 equivalent for NIC 2651?
Use the legacy converter only as a migration aid. Old NIC 2008 matches can suggest where to look, but NIC 2025 should remain the primary reference for new code selection.
NIC 2026 guidance
How to move from Class 2651 to the right Sub-class
NIC 2651 is an intermediate hierarchy page, not usually the final code used in a filing. Use it to compare child entries, read the nearby-code context and move toward the most precise six-digit Sub-class. If the child list contains several similar activities, open each candidate page and compare the wording against the business's real operating model.
Data Source and Verification Date
Source layer
Official NIC 2025 Excel and PDF from MoSPI.
Last verified
2026-04-21 from the generated NIC 2025 source layer used in this build.
Disclaimer
This is an independent reference tool. Verify filing-critical decisions in official sources.