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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8431.49.90Same rate: 35%

If adapters for 8430.49 other drilling machinery like top drives

8430.49 covers non-land rigs; parts follow if not 8430.41 specific.

7326.90.86Higher: 37.9% vs 35%

If generic forged steel articles without boring specificity

Unspecified steel fabrications fall to Chapter 73 residual provisions.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Include load capacity charts proving use solely with 8430.41 rotary tables

Galvanized finishes require surface treatment declaration

Related Products 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.

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.