Chapter 4007 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 40.07
Medical Grade Silicone Rubber Thread
Medical grade silicone rubber thread for surgical sutures and medical device elastic components. Silicone rubber, when vulcanized, qualifies as synthetic rubber under chapter note 4, and the thread is not covered, fitting tariff item 4007.00.10.
4007.00.10Natural Rubber Latex Thread for Underwear
Natural rubber latex thread for underwear waistbands, extruded and cured to diameters under 5 mm. It is a continuous vulcanized rubber thread not covered with any material, directly matching tariff item 4007.00.10.
4007.00.10Neoprene Rubber Diving Suit Thread
Neoprene rubber diving suit thread, made of vulcanized polychloroprene for stitching wetsuit seams. As a synthetic rubber per chapter note 4, this thread is not covered and falls under tariff item 4007.00.10.
4007.00.10Rubber Core Yarn Thread
Rubber core yarn thread with minimal textile wrap for hosiery production. The rubber core provides essential elasticity, and the thread is classified under tariff item 4007.00.10 before full yarn integration, as the rubber is the essential character.
4007.00.10Vulcanized Rubber Elastic Thread
Vulcanized rubber elastic thread, fine and used in textile manufacturing for elastic properties in garments. It is extruded into continuous thin strands, not covered, and meets the specifications of tariff item 4007.00.10.
4007.00.10Vulcanized Rubber Orthodontic Elastics
Vulcanized rubber orthodontic elastics, small latex-based cords for dental braces. They are precisely sized and not covered, qualifying under tariff item 4007.00.10 as medical rubber thread.
4007.00.10Vulcanized Rubber Sewing Elastic Cord
Vulcanized rubber sewing elastic cord, narrow and produced from natural rubber latex, fully vulcanized for insertion in sewing operations. It is not covered, fitting tariff item 4007.00.10 as specialized rubber thread.
4007.00.20Automotive Door Seal Rubber Cord
Automotive door seal rubber cord made of vulcanized EPDM rubber, profile-extruded into a continuous cord for weatherstripping applications. It is classified under tariff item 4007.00.20 as cord, not covered, since it is not covered with textile or other materials and meets the definition of vulcanized rubber cord.
4007.00.20Industrial Rubber Conveyor Thread
Industrial rubber conveyor thread made of high-tensile synthetic rubber cord used for reinforcing conveyor belting sidewalls. It is supplied as continuous vulcanized rubber cord, not covered with any textile, and meets the specifications of heading 40.07.
4007.00.20Latex Rubber Cord for Mask Earloops
Latex rubber cord for mask earloops, made of thin vulcanized natural latex rubber extruded into continuous cord. It is not covered with any material and is classified under tariff item 4007.00.20 as vulcanized rubber cord.
4007.00.20Synthetic Rubber Bungee Cord Thread
Synthetic rubber bungee cord thread, made of vulcanized synthetic rubber for use in bungee cords and elastic tie-downs. It meets the vulcanization and elongation criteria of chapter note 4 and is classified as vulcanized rubber cord under 4007.00.20.
4007.00.20Vulcanized Rubber Dental Floss Cord
Vulcanized rubber dental floss cord, a thin flavored rubber cord used as an alternative to traditional dental floss. It is classified as vulcanized rubber cord under 4007.00.20, as it is not an article of Chapter 96.
4007.00.20Vulcanized Rubber Expansion Joint Cord
Vulcanized rubber expansion joint cord, a heavy-duty EPDM rubber cord for sealing expansion joints in construction and piping. It is supplied as continuous cord, not covered, and classified under 4007.00.20 as vulcanized rubber cord.
4007.00.20Vulcanized Rubber Fitness Band Cord
Vulcanized rubber fitness band cord, a strong synthetic rubber cord for resistance bands and exercise equipment. It meets the elongation and recovery requirements of chapter note 4 and is classified as vulcanized rubber cord under 4007.00.20.
4007.00.20Vulcanized Rubber Hair Tie Cord
Vulcanized rubber hair tie cord, an elastic natural rubber cord cut into loops for hair accessories. It is classified as vulcanized rubber cord under 4007.00.20, provided it is imported as continuous cord before being cut into loops.