Other
Parts suitable for use solely or principally with the machinery of headings 8425 to 8430: > Of machinery of heading 8426, 8429 or 8430: > Parts for boring or sinking machinery of subheading 8430.41 or 8430.49: > Other > Of oil and gas field machinery: > 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 8431.43.80.60
Oilfield Drill Bit Replacement Insert
Tungsten carbide inserts designed specifically for polycrystalline diamond compact (PDC) drill bits used in oil and gas drilling rigs under heading 8430.41. These parts are critical for penetrating hard rock formations during boring operations in oilfields. Classified under 8431.43.8060 as 'other' parts for oil and gas field boring machinery.
Rotary Table Bearing Assembly
Precision bearing ring set for the rotary table on oil and gas drilling rigs (8430.41), enabling controlled rotation of the drill string during boring. Machined to withstand extreme torque and mud pressures in oilfield conditions. Falls under 8431.43.8060 as other parts of oil/gas field boring machinery.
Mud Swivel Hose Connector
High-pressure forged steel connector for the mud swivel on 8430.41 drilling rigs, routing drilling fluid from pumps to the rotating drill string. Designed for oil/gas field boring with API threading standards. Classified in 8431.43.8060 as other oilfield boring parts.
Kelly Drive Bushing
Hardened alloy steel bushing for the kelly drive system on oil drilling rigs (8430.41), transmitting torque from rotary table to square kelly bar during boring. Oilfield-specific tolerances for high-wear environments. Under 8431.43.8060 as other boring machinery parts.
Master Bushing Adapter
Steel adapter ring for master bushings on drilling rig rotary tables (8430.41), allowing interchangeable insert sizes for oil/gas boring operations. Precision machined for oilfield torque loads. HTS 8431.43.8060 other parts category.
Draw Works Brake Drum Lining
High-friction composite lining segments for brake drums on draw works hoisting systems of 8430.41 oil drilling rigs. Engineered for oilfield hoisting loads during boring pipe handling. Classified 8431.43.8060 as other oil/gas boring parts.
Top Drive Gearbox Mounting Bracket
Heavy-duty fabricated steel bracket for mounting gearboxes on top drive systems of 8430.41 oil/gas drilling rigs. Welded construction for offshore boring vibration resistance. HTS 8431.43.8060 other category.
Blowout Preventer Flange Gasket
Spiral-wound graphite/steel gasket for ram-type blowout preventer (BOP) flanges on 8430.41 drilling rigs, sealing high-pressure oil/gas wellheads during boring. API 6A compliant for oilfield service. Under 8431.43.8060 as other boring parts.
Drill Pipe Slip Segment
Tungsten carbide tipped slip segments for drill pipe slips on 8430.41 rig rotary tables, gripping pipe during boring make/break operations in oilfields. Replaceable wear parts. Classified 8431.43.8060 other oil/gas boring parts.
Crown Block Sheave
Ductile iron sheave wheel for crown block assemblies on 8430.41 drilling derricks, guiding wire rope in hoisting systems for oil/gas boring. Grooved for specific rope diameter. HTS 8431.43.8060 other parts.