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.

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.

8484.90.00.00Higher: 37.5% vs 35%

If standard pipe flanges/gaskets not BOP-specific

Generic sealing products classify in 8484, separate from machinery parts.

4009.41.00.00Higher: 37.5% vs 35%

If rubber dominates over metal spiral winding

Material by weight determines chapter: Chapter 40 rubber vs 8431 parts.

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

API monogram certification critical for customs acceptance

Pressure/temperature ratings must match 8430.41 BOP specs

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.

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.