8.4MM CS X 319.5MM ID BLACK BUNA 70D

The H8.4X319.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 319.5 mm (12.579 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 336.3 mm (13.24 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Source specification: Metric O-RING, JIS P320.

Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against propane and butane, petroleum-based oils, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.

It sees regular use in construction equipment, automotive, and agricultural equipment.

This item is sold individually under part number H8.4X319.5. Unit weight is approximately 69.854 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.