Laser Gauge Dust Shield Window from Germany
Sapphire or fused silica protective window for laser micrometer optical heads (9031.41) preventing contamination while maintaining beam transmission. Anti-reflective coated for measurement accuracy. Classified as protective part under 9031.90.54.00.
Duty Rate — Germany → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Transmission spectrum and scratch-dig specs required; hardness certification for sapphire; prevent classification as general watch glass under 7017