Evinrude, Johnson And Gale Outboard Motors O-Ring - Sierra Marine Engine Parts - 18-7120 (118-7120)

In its most basic form, o-ring seals work by forming a groove or channel between two surfaces/components pressed or joined. The more internal pressure given to this joint, the more the o-ring is distorted inside its groove, which can enhance the total sealing force up to a point, but it can cause the seal to break if the pressure exceeds a particular threshold, or if the load is more dynamic. To fulfill its duty, you must strike the correct balance between o-ring material, size, and working environment.

Key Features:

• To prevent gases or liquids from escaping unintentionally, they are only employed to enhance the seal between two other components and make them more leak-proof.
• A form of a gasket, with the difference being that o-rings are typically in a high-pressure setting, where a standard cork, paper, or rubber gasket would most likely fail, as opposed to a cork, paper, or rubber gasket.

Specifications:

• SKU: 18-7120
• UPC: 808282259600
• Weight: 0.01 LBS
• I.D. : 0.215" or 5.5mm
• Width: 0.065" or 1.7mm

I.D.: 0.215" or 5.5mm, Width: 0.065" or 1.7mm

This product replaces:

47-7120, GLM80090, 808282259600, 25-F498618, AP267, AP253, AP786, 92-80090, 9-76526