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E99-677C44 - Miller Stainless Steel CGA 677 Nut for High Pressure Inert Gas

Packaging: 1 per ea
$172.12/ea $105.95/1 per ea only $105.95/eaSave 38%

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SKU: MILE99-677C44 Categories: ,

OVERVIEW

Premium Stainless Steel Connection for High-Pressure Systems

The Miller E99-677C44 is a specialized stainless steel nut designed to meet the rigorous demands of high-pressure gas delivery systems. Manufactured to the Compressed Gas Association (CGA) 677 standard, this component is engineered for use with inert gases such as Nitrogen, Argon, and Helium. In industrial environments where gas pressures can reach up to 7500 PSIG, the integrity of every connection is paramount. This nut serves as the critical fastening element that secures the nipple to the cylinder valve or manifold outlet, ensuring a tight, leak-proof seal that protects both personnel and equipment.

Constructed from high-quality stainless steel, the E99-677C44 offers superior mechanical properties compared to standard brass fittings. Stainless steel provides excellent tensile strength, which is vital for withstanding the immense forces generated by high-pressure gas flows. Furthermore, the material's inherent corrosion resistance makes it ideal for use in harsh industrial environments or clean-room applications where contamination must be minimized. Unlike softer metals that may deform under repeated torque, this stainless steel nut maintains its thread integrity over multiple connection cycles, providing long-term reliability and reducing the frequency of replacement.

As a genuine Miller OEM part, this nut guarantees compatibility with Miller gas regulation equipment and standard CGA 677 assemblies. Precision machining ensures that the threads engage smoothly and accurately, preventing cross-threading and ensuring proper seating of the mating nipple. Whether you are assembling a new high-pressure manifold, repairing an existing regulator setup, or maintaining a fleet of gas cylinders, the Miller E99-677C44 provides the assurance of quality and safety that professional operations require. It is a small but indispensable component in the infrastructure of industrial gas distribution.

Safety in gas handling begins with the correct selection of fittings. The CGA 677 standard is specifically designated for high-pressure inert gases to prevent the accidental connection of incompatible gas lines. By utilizing this specific nut, operators ensure compliance with safety standards and prevent hazardous cross-connections. The robust design of the Miller E99-677C44 ensures that your high-pressure systems operate efficiently, safely, and without interruption.

Additional Information
Packaging Description:1 Per Ea
Material:Stainless Steel
Connection Type:CGA 677
Gas Service:Argon, Helium, Inert Gases, Nitrogen
Pressure Rating:High Pressure (Up to 7500 PSIG)
Part Type:Nut
----- new values below ----
Material:Stainless Steel
Connection Type:CGA 677
Gas Service:Inert Gases, Nitrogen, Argon, Helium
Pressure Rating:High Pressure (Up to 7500 PSIG)
Part Type:Nut
Brand:Miller OEM
Packaging Description:1 Per Ea

INCLUDED

  • 1 x Miller E99-677C44 Stainless Steel CGA 677 Nut

APPLICATIONS

  • High-pressure gas cylinder connections
  • Industrial gas manifolds for Argon, Nitrogen, and Helium
  • Regulator inlet assemblies
  • Laboratory gas distribution systems
  • Laser cutting gas supply lines
  • High-pressure purging applications

FAQ

CGA 677 is a standard connection for inert gases such as Nitrogen, Argon, and Helium, specifically designed for high-pressure applications ranging from 3001 to 7500 PSIG.

This nut is manufactured from stainless steel, providing high strength and excellent corrosion resistance suitable for high-pressure environments.

No, this product is the nut only. The mating nipple must be purchased separately to complete the connection.

No, CGA 677 is specifically for inert gases. Oxygen cylinders use different CGA connections (typically CGA 540 or CGA 701 for high pressure) to prevent dangerous cross-connections.

Yes, the E99-677C44 is a genuine Miller OEM replacement part, ensuring compatibility and quality.

As a CGA 677 component, it is rated for use with cylinder pressures up to 7500 PSIG.

Stainless steel offers higher tensile strength for handling extreme pressures and better durability against thread wear and environmental corrosion compared to brass.