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Auxiliary machinery for use with machines of heading 8444, 8445, 8446 or 8447 (for example, dobbies, Jacquards, automatic stop motions and shuttle changing mechanisms); parts and accessories suitable for use solely or principally with the machines of this heading or of heading 8444, 8445, 8446 or 8447 (for example, spindles and spindle flyers, card clothing, combs, extruding nipples, shuttles, healds and heald-frames, hosiery needles): > Parts and accessories of machines of heading 8447 or of their auxiliary machinery: > Sinkers, needles and other articles used in forming stitches: > Other

Duty Rate (from China)

17.5%

MFN Base RateFree

9903.03.01+10%

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

9903.88.15+7.5%

Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 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(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)

Total Effective Rate17.5%

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Products classified under HTS 8448.51.50.00

Single Jersey Knitting Sinkers

Sinkers optimized for single jersey circular knitting machines producing smooth fabrics for T-shirts. Designed to prevent dropped stitches at high RPMs. Specifically 'other' under HTS 8448.51.5000 for 8447 machine stitch formation.

Rib Knitting Transfer Jacks

Transfer jacks used in ribbing attachments of knitting machines (8447) to move stitches between needle beds for 1x1 rib fabrics. Critical for collar and cuff production.

Computerized Flat Knitter Stitch Cams

Cams that control needle timing in computerized flat knitting for intarsia patterns. Direct stitch formation paths.

Seamless Garment Knitting Needle Jacks

Jacks that lift/select needles in seamless body garment knitters for 3D shaping.

High-Speed Sock Knitting Sinkers

Ultra-thin sinkers for 40+ RPM sock machines, minimizing fabric defects.

Lace Warp Knitting Guides

Eyelet guides for delicate lace warp knitting, preventing yarn breakage.

Jacquard Knitting Selector Wires

Flexible wires selecting needles in jacquard systems for complex patterns.

Double Jersey Presser Feet

Presser feet stabilizing loops in double jersey machines for sportswear.

Needle Transfer Hooks

Hooks transferring stitches between needles in multi-bed knitters.

Circular Knitting Machine Sinkers

Sinkers are specialized metal components used in circular knitting machines (heading 8447) to hold and release yarn loops during stitch formation. They are precision-engineered for high-speed operations in producing seamless tubular fabrics like socks or hosiery. Classified under HTS 8448.51.5000 as 'other articles used in forming stitches' for knitting machinery.

Flat Bed Knitting Machine Needles

Latch needles designed for flat bed knitting machines under heading 8447, featuring a hook and latch mechanism for stitch formation in producing shaped panels like sweater parts. Made from hardened steel for durability in high-tension weaving. Falls under 'other articles used in forming stitches' in HTS 8448.51.5000.

Hosiery Knitting Loop Formers

Precision loop formers (sinker variants) used in automatic hosiery knitting machines (8447) to shape and release yarn loops for seamless sock production. Typically carbide-tipped for wear resistance. HTS 8448.51.5000 covers these as 'other' stitch-forming articles.