5MM CS X 8MM ID BLACK BUNA 70D

Ordered as H5X8, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 8 mm (0.315 in), a cross section of 5 mm (0.197 in), and an outside diameter of 18 mm (0.71 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against greases and lubricants, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with ketones or ozone and direct sunlight.

Typical settings include agricultural equipment, fluid power, and construction equipment.

Order part number H5X8, sold individually. Unit weight is approximately 0.979 g. Check the compound against your process media, pressure and temperature before committing to a design.