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17112 - ESAB CGA 520 Acetylene Inlet Nipple .44-20M

Packaging: pack of 1
$137.36/EA $76.95/pack of 1 only $76.95/EASave 44%

Usually ships within 3-5 business days

OVERVIEW

Restore Your Regulator with Genuine ESAB Parts

Don't let a stripped thread or a damaged sealing surface compromise your safety. The ESAB 17112 Inlet Nipple is the perfect replacement part for welders using Acetylene B-tanks. If your regulator isn't seating correctly on the cylinder, or if you notice signs of wear on the inlet stem, it's time to swap it out. This nipple is designed with the standard CGA 520 connection, making it compatible with the small acetylene cylinders commonly used in HVAC, plumbing, and light fabrication.

Built from durable brass, this nipple is tough enough to handle the daily grind of swapping cylinders. The .44-20M thread is precision-cut to screw smoothly into your regulator body, ensuring a hassle-free repair. Using genuine parts like this ensures that your equipment functions exactly as the manufacturer intended, giving you consistent gas flow and a leak-free seal every time you crack the valve.

Safety is paramount in oxy-acetylene welding and cutting. A compromised inlet nipple can lead to gas leaks at the cylinder connection—a serious fire hazard. By maintaining your equipment with fresh, high-quality fittings, you protect yourself and your shop. This part is a direct replacement for many Victor and ESAB style regulators. Simply remove the old nipple (and nut), clean the threads, and install this new unit to get your torch outfit back in top working condition.

Why Choose This Replacement Nipple?

  • Perfect Fit: Designed specifically for CGA 520 connections.
  • Durable: Solid brass resists deformation and corrosion.
  • Safe: OEM quality ensures a reliable gas seal.
  • Easy Repair: Standard threads make installation straightforward.
Additional Information
Brand:ESAB
Gas Type:Acetylene
Packaging Description:1 Per Ea
Connection Type:CGA 520
Thread Size:.44-20M
Material:Brass
Part Type:Inlet Nipple
Application:Gas Regulation, Cylinder Connection

INCLUDED

  • 1 x Brass Inlet Nipple (CGA 520)

APPLICATIONS

  • Oxy-Acetylene Welding and Cutting
  • HVAC Brazing Operations
  • Plumbing and Pipefitting
  • Gas Regulator Repair and Maintenance
  • Manifold Systems using B-Tanks

FAQ

CGA 520 is the standard connection for Acetylene gas, specifically for 'B' size cylinders (40 cu. ft.).

No, this item is the inlet nipple only. The inlet nut must be purchased separately if needed.

The thread size is .44-20M (0.44 inch diameter, 20 threads per inch, Male).

Yes, ESAB owns Victor, and this part is generally compatible with Victor-style regulators requiring a CGA 520 inlet.

Inspect the nipple for damaged threads, deformation on the sealing surface, or cracks. If you detect leaks at the cylinder connection that tightening doesn't fix, replace the nipple.

No, CGA 520 is specific to Acetylene. Propane typically uses CGA 510. Always use the correct CGA fitting for your gas type to ensure safety.

It is manufactured from high-quality brass.

Typically, yes. A compatible PTFE tape or thread sealant approved for oxygen/fuel gas service should be applied to the threads entering the regulator body, but NEVER on the CGA sealing surface.