Section 18 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof 90 Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof 90 14 Direction finding compasses; navigational instruments/appliances, nes Commodity Code Description 90 14 10 Direction finding compasses 90 14 20 Instruments and appliances for aeronautical or space navigation (other than compasses) 90 14 80 Other instruments and appliances 90 14 90 Parts and accessories for direction finding compasses; other than navigational instrumen
