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86W40 - B-Size Oxygen Brass Plug with Chain (Right Hand)

Packaging: pack of 1
$53.36/EA $32.20/pack of 1 only $32.20/EASave 40%

Usually ships within 3-5 business days

SKU: ESB86W40 Categories: ,

OVERVIEW

Western Enterprises 86W40 Brass Plug & Chain Assembly

The Western Enterprises 86W40 is a precision-engineered brass plug and chain assembly designed for industrial gas equipment maintenance and protection. Manufactured to strict tolerances, this component is essential for preserving the integrity of gas distribution systems, specifically those utilizing B-Size fittings.

Constructed from high-quality brass, the 86W40 offers superior resistance to corrosion and mechanical wear, making it suitable for harsh industrial environments. The plug features a standard 5/8"-18 Right Hand (RH) thread, compliant with CGA connection standards for B-Size outlets typically found on oxygen and inert gas equipment. By securely sealing open outlets on manifolds, regulators, or station drops, this plug effectively prevents the ingress of atmospheric contaminants, moisture, and particulate matter that could otherwise compromise downstream equipment or gas purity.

A key feature of this assembly is the integrated retaining chain. In busy MRO environments, loose protective caps are frequently misplaced. The 86W40 mitigates this risk by physically tethering the plug to the equipment, ensuring it remains accessible for immediate re-application upon disconnection of hoses or downstream devices. This simple yet effective design promotes consistent equipment hygiene and thread protection.

Technical Specifications:

  • Manufacturer: Western Enterprises
  • Part Number: 86W40
  • Material: Brass
  • Thread Specification: 5/8"-18 UNF
  • Thread Direction: Right Hand (RH)
  • Application: Oxygen, Argon, Helium, Nitrogen (B-Size outlets)
Additional Information
Packaging Description:1 Per Ea, pack of 1
Material:Brass
Thread Size:5/8"-18
Thread Direction:Right Hand (RH)
Fitting Size:B-Size
Gas Service:Inert Gas, Oxygen
Component Type:Plug & Chain
----- new values below ----
Material:Brass
Thread Size:5/8"-18
Thread Direction:Right Hand (RH)
Fitting Size:B-Size
Gas Service:Oxygen, Inert Gas
Component Type:Plug & Chain
Brand:Western Enterprises
Packaging Description:1 Per Ea

INCLUDED

  • 1 x Brass Plug (B-Size, RH)
  • 1 x Retaining Chain
  • 1 x Attachment Ring/Link

APPLICATIONS

  • Sealing B-Size Oxygen regulator outlets during transport
  • Capping unused ports on gas distribution manifolds
  • Protecting threads on station drops
  • Preventing contamination in inert gas lines (Argon, Helium, Nitrogen) with RH fittings

FAQ

The thread size is 5/8"-18 UNF, commonly known as B-Size.

This is a Right Hand (RH) thread plug.

No. Fuel gases like Acetylene and Propane typically use Left Hand (LH) threads (notched nuts). This plug is Right Hand and will not fit.

It is machined from solid brass.

Yes, the assembly includes the brass plug attached to a chain.

It is designed to protect threads and prevent dirt, dust, and debris from entering gas outlets when they are not in use.

If your Argon regulator uses a standard B-Size outlet (5/8"-18 RH), which is very common, then yes, this plug will fit.

While the brass construction and threads provide a tight seal, this is primarily designed as a protective dust plug. Always close the cylinder or manifold valve before installing.

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