The Smith 1789 Head O-Ring is a genuine OEM replacement designed for use inside the head of all Smith SC Series Cutting Attachments. This precision-engineered O-ring provides a gas-tight seal between the mixer and the cutting head, ensuring safe and efficient torch performance under high-pressure conditions.

Key Features

• Genuine OEM Smith® replacement O-ring
• Fits all SC Series cutting attachments
• Ensures gas-tight seal between torch head and mixer
• Maintains consistent cutting performance and prevents leaks
• Durable, high-temperature resistant elastomer construction

Technical Specifications

• Part Number: 1789
• Brand: Smith® (Miller®)
• Type: Head O-Ring
• Compatibility: SC Series Cutting Attachments
• Application: Oxygen/fuel sealing between mixer and head