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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

12.5%

Rate breakdown

9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 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