277292 - Miller 277292 Buna-N O-Ring AS568-224

High-Performance Buna-N O-Ring for Industrial Applications

The Miller 277292 is a precision-engineered O-Ring designed to meet the rigorous demands of industrial welding equipment. Specified as an AS568-224 standard size, this component features an Inner Diameter (ID) of 1.750 inches and an Outer Diameter (OD) of 2.000 inches. It is the exact replacement part required for specific assemblies within Miller power sources and wire feeders, ensuring that fluid or gas containment systems remain sealed and operational.

Material Composition and Benefits
This O-ring is fabricated from Buna-N (Nitrile Rubber), a material renowned for its exceptional resistance to petroleum-based oils, hydraulic fluids, and water. Buna-N also exhibits good tensile strength and abrasion resistance, making it an ideal choice for dynamic or static sealing applications in welding machinery where vibration and minor friction may occur. Its operating temperature range typically covers standard industrial environments, ensuring the seal remains pliable and effective during extended use.

Installation and Compatibility
Replacing worn seals is a fundamental aspect of equipment maintenance. The Miller 277292 fits seamlessly into the designated grooves of compatible Miller hardware. Proper installation of this O-ring prevents leaks that could compromise shield gas coverage or coolant circulation, directly impacting weld quality and machine longevity. Verify your machine's parts manual for the 277292 part number to ensure compatibility before installation.