8.4MM CS X 375MM ID BLACK BUNA 70D

Ordered as H8.4X375, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 375 mm (14.764 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 391.8 mm (15.43 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. It resists water, many alcohols, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.

It sees regular use in automotive, agricultural equipment, and fluid power.

Order part number H8.4X375, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.