194261 - Miller 194261 Buna-N O-Ring .551 ID x .070 CS (10-Pack)

Genuine Miller 194261 O-Ring Replacement Kit (10-Pack)

Maintain the integrity of your welding equipment with the Miller 194261 O-Ring. This package contains ten (10) high-quality O-rings designed specifically for Miller Electric machinery. O-rings are critical components in any pneumatic or hydraulic system, serving as the primary seal to prevent the escape of gases or fluids. In welding applications, a compromised O-ring can lead to shielding gas leaks, which may result in weld porosity, oxidation, and poor arc stability. Ensuring your seals are fresh and pliable is a fundamental step in preventative maintenance.

Material Composition and Durability

These O-rings are manufactured from Buna-N (Nitrile Butadiene Rubber), the standard-bearer for general-purpose sealing in industrial environments. Buna-N is renowned for its exceptional resistance to petroleum-based oils, fuels, water, and many hydraulic fluids. With a hardness rating of 70 Durometer (Shore A), these seals offer the perfect balance between pliability—allowing them to conform to the groove for a tight seal—and rigidity, which prevents extrusion under pressure. This material choice ensures that the O-rings maintain their shape and sealing properties even in the demanding conditions of a welding shop.

Precise Dimensions for Perfect Fitment

Using the correct size O-ring is non-negotiable for equipment safety and performance. The Miller 194261 features an Inner Diameter (ID) of 0.551 inches and a Cross Section (CS) of 0.070 inches. These precise dimensions are engineered to fit specific mating grooves within Miller equipment. Attempting to use a generic O-ring with slightly different tolerances can result in pinched seals during installation or failure under operating pressure. By choosing genuine Miller OEM parts, you guarantee that the tolerances match the original engineering specifications of your machine.

Maintenance and Storage

Rubber components degrade over time due to exposure to ozone, heat, and UV light. This 10-pack allows facilities to keep a fresh stock of essential spares. It is recommended to store these O-rings in a cool, dark place away from direct sunlight and electric motors (which generate ozone) to maximize their shelf life. When installing, ensure the mating surfaces are clean and free of debris to prevent damage to the new seal.