Disks, wafers and washers
Articles of natural cork: > Other: > Disks, wafers and washers
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 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 4503.90.20.00
Natural Cork Gasket Washers
These are thin, circular washers made from compressed natural cork used as gaskets in machinery and plumbing to create seals. They fall under HTS 4503.90.20.00 as articles of natural cork specifically shaped as washers. The porous structure of cork provides excellent compressibility and sealing properties.
Cork Bottle Stopper Disks
Flat, disk-shaped pieces of natural cork used as stoppers or liners in wine and spirit bottles. Classified under HTS 4503.90.20.00 as cork disks, these provide airtight seals due to cork's elasticity. They are distinct from full cylindrical stoppers.
Cork Speaker Grill Wafers
Thin wafer-like sheets of natural cork cut into disks for use as protective grills on audio speakers. They are classified as cork wafers under HTS 4503.90.20.00 due to their flat, disk form and natural cork composition. Cork's acoustic properties help dampen vibrations.
Natural Cork Coaster Disks
Circular disks of natural cork used as drink coasters to absorb moisture and protect surfaces. These qualify under HTS 4503.90.20.00 as cork disks, valued for their natural water-resistant properties. They are typically 4 inches in diameter and simply cut.
Cork Jar Seal Washers
Ring-shaped washers from natural cork designed to seal glass jars for preserves and canning. Classified as cork washers under HTS 4503.90.20.00, they compress under lid pressure for airtight closure. Ideal for food preservation due to inert properties.
Cork Dialysis Filter Wafers
Ultra-thin natural cork wafers used in medical dialysis equipment as filter spacers. They fit HTS 4503.90.20.00 as cork wafers, leveraging cork's biocompatibility and porosity. Precisely cut for high-purity applications.
Natural Cork Vibration Dampener Disks
Disks of natural cork placed under machinery feet to absorb vibrations and reduce noise. Classified under HTS 4503.90.20.00 as cork disks, they excel due to cork's high damping coefficient. Commonly used in industrial equipment.
Cork Watch Gasket Washers
Small precision washers made from natural cork for sealing watch cases against water. These are HTS 4503.90.20.00 cork washers, prized for impermeability and aging resistance. Used in luxury timepieces.
Cork Musical Instrument Pickup Wafers
Thin cork wafers mounted under pickup covers in electric guitars to reduce feedback. Classified as natural cork wafers under HTS 4503.90.20.00 for their damping qualities. Enhances sound clarity in instruments.
Natural Cork Thermal Insulation Disks
Circular disks of natural cork used as thermal barriers in high-heat applications like oven doors. HTS 4503.90.20.00 covers these cork disks for their low thermal conductivity. Cut from plank cork for durability.
Cork Eyeglass Frame Washers
Tiny cork washers spacing hinges in premium eyeglass frames for smooth operation. As natural cork washers, they fall under HTS 4503.90.20.00. Provide silent, frictionless movement.
Cork Bullet Seal Wafers
Wafers of natural cork crimped into bullet casings for ammunition sealing. HTS 4503.90.20.00 for cork wafers; provides wad-like expansion seal. Used in shotshells.
Natural Cork Pipe Flange Washers
Large cork washers for sealing pipe flanges in low-pressure systems. Classified HTS 4503.90.20.00 as cork washers; compressible for easy installation. Common in agricultural plumbing.
Cork Camera Lens Mount Disks
Cork disks cushioning lens mounts in vintage cameras against shock. HTS 4503.90.20.00 cork disks for vibration isolation. Restores original damping.
Cork Lab Funnel Wafers
Natural cork wafers forming seats in laboratory glass funnels for filter papers. HTS 4503.90.20.00 as cork wafers; chemical resistant. Lab standard.