Micrometer Calibration Standard Rod
High-precision gauge block rod designed exclusively for calibrating micrometers in 9017.30.80, made from hardened steel with NIST-traceable tolerances. Used in hand-held verification processes for dimensional accuracy. Qualifies under 9017.90.0150 as a specialized accessory for these instruments.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If marketed as independent measuring standard
Other measuring/checking instruments (not accessories) classify in 9031 per Chapter Note.
If sold as general steel gauge without instrument tie
Base metal articles without specific Chapter 90 function go to Chapter 73.
If usable for multiple instrument calibration types
Non-principal use parts fall to general heading 9033.
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Import Tips & Compliance
• Include calibration certificates and traceability documentation for customs valuation
• Specify exact length tolerances matching common micrometer ranges (0-25mm, etc.)
• Package individually to avoid set classification issues
Related Products under HTS 9017.90.01.50
Digital Micrometer Replacement Jaws
Precision-machined replacement jaws for digital micrometers used in subheading 9017.30.80, designed for accurate measurement of small dimensions in hand-held applications. These parts are specifically compatible with electronic micrometers for length measurement, excluding those classified elsewhere in Chapter 90. They fall under 9017.90.0150 as dedicated accessories for instruments in 9017.30.80.
Vernier Caliper Adjustment Rack
Adjustable rack mechanism for vernier calipers classified under 9017.30.80, enabling precise zero-setting and calibration in hand-held length measurement. This accessory is integral to maintaining accuracy in mechanical calipers for engineering and inspection tasks. Classified in 9017.90.0150 as a part specific to 9017.30.80 instruments.
Electronic Measuring Tape Case Assembly
Protective case and retraction assembly for electronic measuring tapes in 9017.30.80, featuring integrated blade guides and battery compartments for hand-held length measurement. This part ensures durability and functionality in field applications like construction surveying. Falls under 9017.90.0150 as an accessory dedicated to 9017.30.80 instruments.
Dial Indicator Mounting Bracket
Precision aluminum bracket for mounting dial indicators (9017.30.80) on magnetic bases or fixtures for hand-held comparative measurement. Allows stable positioning during inspection without being a machine tool accessory. Classified as 9017.90.0150 part due to exclusive compatibility with subheading 9017.30.80 instruments.
Caliper Depth Gauge Extension
Interchangeable extension rods for vernier/digital caliper depth measurement capability under 9017.30.80. Precision-ground stainless steel for accessing recessed dimensions in hand-held use. Dedicated part for 9017.30.80 classified in 9017.90.0150.
Measuring Tape Blade Replacement
Fiberglass or steel blade insert for electronic/mechanical measuring tapes (9017.30.80), with printed graduations and end hook assembly. Designed for hand-held length measurement replacement in construction and surveying. 9017.90.0150 part for subheading 9017.30.80.