Other
Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal; sets or assortments of gaskets and similar joints, dissimilar in composition, put up in pouches, envelopes or similar packings; mechanical seals: > Other
Duty Rate (from China)
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
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8484.90.00.00
Semiconductor Wafer Grinder Gasket Kit
Assortment of precision multi-layer metal gaskets with PTFE coating for sealing chambers in wafer grinding machines used in semiconductor fabrication. Classified in 8484.90.00.00 as dissimilar gasket sets in pouches, designed for cleanroom compatibility in crystal boule processing equipment.
Marine Engine Exhaust Gasket Assortment
Retail-packaged set of dissimilar gaskets including copper-asbestos and multi-layer steel for marine diesel exhaust manifolds. Fits 8484.90.00.00 as assortments put up in envelopes, with metal sheeting combined with other materials for corrosion resistance.
Compressor Mechanical Face Seal
Mechanical face seal with metal bellows, carbon face, and rubber O-rings for air compressors in manufacturing. Classified 8484.90.00.00 as other mechanical seals combining metal with other materials for rotating equipment.
Graphite Composite Flange Gasket
Spiral-wound gasket of stainless steel sheeting combined with flexible graphite for industrial pipeline flanges. Under 8484.90.00.00 for metal sheeting gaskets combined with other materials, used in oil & gas processing.
Oven Door Multi-Layer Gasket
High-temperature gasket with steel mesh combined with fiberglass and silicone for commercial oven doors. 8484.90.00.00 as other metal sheeting gaskets combined with materials for heat containment.
Valve Stem Multi-Material Seal
Mechanical seal for valve stems using metal sheeting with PTFE and elastomer for chemical valves. 8484.90.00.00 other mechanical seals category.
Heat Exchanger Tube Sheet Gasket Set
Assortment of double-jacketed metal gaskets with filler material for heat exchanger tube sheets. Packaged sets for 8484.90.00.00 dissimilar composition.
Automotive Head Gasket Set
A pre-assembled set of gaskets including multi-layer steel head gaskets combined with other materials for sealing engine cylinders in passenger cars. Classified under 8484.90.00.00 as sets or assortments of gaskets dissimilar in composition, packaged for retail sale. The multi-layer metal construction with composite materials fits the 'other' category for mechanical seals and gaskets.
Industrial Pump Mechanical Seal
A mechanical seal assembly with metal sheeting gaskets combined with rubber and ceramic components for sealing rotating shafts in centrifugal pumps. Falls under 8484.90.00.00 as 'mechanical seals - other' due to its multi-material construction beyond simple metal sheeting. Used in chemical processing and water treatment industries.
Hydraulic Cylinder Multi-Layer Gasket
Multi-layer gasket combining stainless steel sheeting with graphite and rubber for high-pressure hydraulic cylinders in industrial machinery. Under 8484.90.00.00 as 'other' gaskets of metal sheeting combined with other materials, suitable for heavy equipment applications.