1407-0005 - Victor Buna-N Replacement O-Ring .176 ID

Victor 1407-0005 Buna-N O-Ring Technical Overview

The Victor 1407-0005 O-Ring is a specialized sealing component engineered specifically for the maintenance and repair of Victor oxy-fuel welding and cutting equipment. This O-ring is manufactured from Buna-N (Nitrile rubber), a copolymer of butadiene and acrylonitrile, which is the industry standard for general-purpose sealing applications requiring resistance to aliphatic hydrocarbons. The material selection is critical, as it ensures the O-ring retains its mechanical properties—such as tensile strength and elasticity—even when exposed to oils, greases, and fuels often present in industrial environments.

Dimensionally, this component is precision-molded to exact specifications: an Inner Diameter (ID) of 0.176 inches, an Outer Diameter (OD) of 0.312 inches, and a cross-sectional width of 0.090 inches. These tight tolerances are essential for creating a static or dynamic seal within Victor torch handles, mixers, and regulators. A deviation in dimensions, common in generic aftermarket parts, can lead to extrusion of the O-ring under pressure or insufficient compression, resulting in gas leaks. Given the volatile nature of oxy-fuel gases, maintaining a hermetic seal is a paramount safety requirement.

The 1407-0005 is designed to operate effectively within a standard temperature range suitable for welding environments. It resists compression set, meaning it will return to its original shape after being compressed, which is vital for maintaining a seal over long periods of use. For MRO (Maintenance, Repair, and Operations) professionals, stocking genuine Victor parts like this O-ring ensures that equipment downtime is minimized and that repairs meet the original equipment manufacturer (OEM) standards. Proper storage of these O-rings involves keeping them away from direct sunlight and ozone sources (like electric motors) to prevent premature aging before installation.