Sperry Marine MK 37 Gyrocompass from Japan

The Sperry Marine MK 37 is a non-electrical gyroscopic compass designed for marine navigation, utilizing mechanical gyroscopes to maintain directional reference without relying on electrical power for the core gyro mechanism. It falls under HTS 9014.10.60.00 as a gyroscopic compass other than electrical, specifically for direction finding in maritime applications. This model is widely used on commercial vessels for reliable heading information.

Duty Rate — Japan → United States

10%

Rate breakdown

9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter

Import Tips

Verify the compass is certified non-electrical gyroscopic per manufacturer specs to avoid reclassification under electrical headings

Include maritime type-approval certificates and gyro mechanism diagrams in documentation for customs clearance

Beware of pitfalls like incomplete vibration resistance testing reports, which can delay approval for shipboard use