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Fluid coupling

Fluid couplings for mechanical power transmission

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 8483 60 20 (Fluid coupling) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code, bill of entry, commercial invoice, packing list. Other mechanical power transmission components under Chapter 84 — such as gearboxes, torque converters, or clutches for specific industrial applications — may be subject to distinct compliance requirements depending on end-use sector.

No partner government agency notification covers this tariff line.
A word of counsel

Fluid couplings destined for installation in mining, explosive-atmosphere, or safety-critical equipment may attract sector-specific import or installation approvals that operate independently of the tariff-line classification — misclassification as a generic coupling when the unit is a torque converter or a specialised clutch assembly can trigger customs re-classification and retrospective compliance. Verify the precise mechanical function and end-use application against the Chapter 84 tariff schedule before shipment.

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Frequently asked
Does HSN 8483 60 20 require any pre-import registration?
A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.
What changes if the component functions as a torque converter rather than a fluid coupling?
Torque converters are classified separately within Chapter 84 under the gear boxes and speed changers subheading and may carry distinct customs treatment; re-classification by customs to the more specific tariff line triggers retrospective duty and compliance review.
Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.
Related
ChapterChapter 84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereofIndustryIndustrial Machinery industryHSNTRANSMISSION SHAFTS (INCLUDING CAM SHAFTS AND CRANK SHAFTS) AND CRANKS; BEARING HOUSINGS AND PLAIN SHAFT BEARINGS; GEARS AND GEARING; BALL OR ROLLER SCREWS; GEAR BOXES AND OTHER SPEED CHANGERS, INCLUDING TORQUE CONVERTERS; FLYWHEELS AND PULLEYS, INCLUDING PULLEY BLOCKS; CLUTCHES AND SHAFT COUPLINGS (INCLUDING UNIVERSAL JOINTS)