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CGA300-1 - Miller CGA 300 Inlet Nut for Commercial Acetylene Regulators

Packaging: 1 per ea
$31.90/ea $19.49/1 per ea only $19.49/eaSave 39%

Usually ships within 3-5 business days

OVERVIEW

Reliable Replacement: Miller CGA 300 Nut for Acetylene Regulators

Keep your welding operations running smoothly with the Miller CGA300-1 Inlet Nut. If you are working with commercial acetylene cylinders, you know that a damaged or worn inlet nut can bring work to a grinding halt. This replacement nut is designed to get your regulator back in service quickly and safely. Made from robust brass, it withstands the rigors of daily shop use, including the torque required to ensure a leak-proof seal on your gas cylinders.

Safety is the number one priority in any welding shop, especially when dealing with fuel gases like acetylene. A compromised fitting can lead to dangerous leaks. The Miller CGA300-1 is precision-machined to fit standard CGA 300 valves perfectly. This specific connection style is the industry standard for commercial acetylene tanks (distinct from the smaller portable tanks or propane connections). The nut features right-hand threads, ensuring you can't accidentally attach it to a left-hand thread cylinder, adding an extra layer of safety to your setup.

This nut is an ideal spare part to keep in your maintenance kit. Threads on regulator fittings can become stripped or rounded over time due to frequent cylinder changes. Having a fresh Miller CGA300-1 on hand means you can swap out a damaged nut immediately, rather than waiting for parts delivery while downtime costs accumulate. It is compatible with most major brands of regulators that utilize the CGA 300 inlet style, making it a versatile fix for your shop's equipment.

Why Choose the Miller CGA300-1?

  • Durability: Solid brass construction resists stripping and corrosion.
  • Safety: Ensures a tight, secure connection to prevent gas leaks.
  • Compatibility: Fits standard commercial acetylene cylinder valves and regulator nipples.
  • Peace of Mind: Genuine quality replacement for critical gas apparatus.

Don't let a small part cause a big problem. Upgrade or repair your regulator connections with the Miller CGA300-1 and maintain the professional standard of your welding equipment.

Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Gas Type:Acetylene (Commercial), Ethyl Chloride
Connection Type:CGA 300
Material:Brass
Component Type:Inlet Nut
Thread Direction:Right Hand
Cross Reference:Superior N-56

INCLUDED

  • 1 x Miller CGA300-1 Inlet Nut (Brass)

APPLICATIONS

  • Connecting regulators to Commercial Acetylene cylinders
  • Repairing damaged regulator inlet assemblies
  • Building custom gas manifolds
  • Industrial gas distribution systems
  • Replacement for worn or stripped CGA 300 nuts

FAQ

CGA 300 is primarily used for Commercial Acetylene cylinders. It is also used for Ethyl Chloride.

No, this product is the nut only (CGA300-1). The nipple must be purchased separately or reused if in good condition.

Yes, the Miller CGA300-1 is a direct functional equivalent to the Superior Products part N-56.

The CGA 300 connection typically utilizes a .825"-14 NGO right-hand thread.

No. Propane tanks typically use CGA 510 connections, which have left-hand threads. CGA 300 has right-hand threads and will not fit.

Check your cylinder valve. CGA 300 (Commercial Acetylene) has external threads on the valve, requiring a nut with internal threads. CGA 510 (Pol) often has internal threads on the valve, requiring a male nut, though some acetylene variations exist. Always verify the gas service type.

It is made of brass, which is the standard material for non-corrosive gas fittings due to its durability and spark resistance.

Generally, CGA fittings rely on the metal-to-metal seal between the nipple and the valve seat. Teflon tape is not usually recommended on the threads of the nut itself, as the seal happens at the seat, not the threads.