Home Shop ESAB 86W70 Replacement O-Rings – .676 ID x .070 (Pack of 10)
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86W70 - ESAB 86W70 Replacement O-Rings - .676 ID x .070 (Pack of 10)

Packaging: pack of 10
$6.67/EA

Package Price:

$66.70/pack of 10

Usually ships within 3-5 business days

SKU: ESB86W70 Categories: ,

OVERVIEW

Precision Sealing for ESAB Plasma Systems

The ESAB 86W70 O-Ring is a critical maintenance component designed to restore the pneumatic integrity of your ESAB plasma cutting torch. Manufactured to exact engineering standards, this O-ring features an inner diameter of 0.676 inches and a cross-sectional thickness of 0.070 inches. These precise dimensions are essential for creating a hermetic seal within the torch body, preventing gas leakage that can compromise cut quality, reduce consumable life, and potentially damage the torch head.

In plasma cutting applications, the sealing system plays a vital role in managing the flow of plasma gas and shield gas. Even a minor breach in the O-ring seal can lead to pressure drops, turbulence in the gas flow, or the introduction of atmospheric contaminants into the plasma stream. The ESAB 86W70 is fabricated from high-grade elastomeric materials selected for their resilience against thermal cycling and resistance to drying or cracking over time. This ensures that the seal maintains its elasticity and shape even after prolonged exposure to the heat generated during heavy cutting operations.

This product is supplied as a package of 10, providing maintenance teams and operators with a sufficient stock for routine service intervals. Regular inspection and replacement of O-rings are recommended as part of a preventative maintenance schedule. Worn or damaged O-rings are a leading cause of arc instability and premature failure of electrodes and nozzles. By utilizing genuine ESAB parts like the 86W70, operators ensure that their equipment continues to meet the manufacturer's specifications for safety and performance.

Installation of the 86W70 should be performed with care, ensuring the seating groove is clean and free of debris. The application of a small amount of appropriate silicone lubricant (if specified by the torch manual) can aid in installation and prolong the life of the seal. Whether for a single station or a fleet of cutting machines, this 10-pack offers the reliability and quality assurance expected from ESAB products.

Additional Information
Packaging Description:pack of 10
Brand:Esab
Item:O-Ring
Inner Diameter:0.676 inches
Cross Section:0.070 inches
Material:Elastomer
Product Type:Replacement Seal

INCLUDED

  • (10) O-Rings (.676 ID x .070)

APPLICATIONS

  • Routine maintenance of ESAB plasma cutting torches
  • Sealing gas passages in torch heads
  • Repairing leaks in plasma gun assemblies
  • Overhauling older torch bodies
  • Fleet maintenance for fabrication shops

FAQ

The ESAB 86W70 O-ring has an Inner Diameter (ID) of 0.676 inches and a cross-section (thickness) of 0.070 inches.

This product is sold as a bag containing 10 individual O-rings.

It is designed for specific ESAB plasma torches and welding guns. Please refer to your equipment's parts breakdown to confirm the part number 86W70 is required.

O-rings create air-tight seals for gas flow. Over time, heat and friction cause them to dry out, crack, or flatten, leading to gas leaks and poor cutting performance.

Yes, a small amount of silicone lubricant is generally recommended to help the O-ring seat properly and prevent tearing during torch assembly.

Yes, this is a genuine ESAB 86W70 part, ensuring OEM quality and fitment.

Absolutely. Leaking gas changes the pressure and cooling dynamics inside the torch, which can cause electrodes and nozzles to burn out much faster than normal.

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