8MM CS X 170MM ID BLACK BUNA 70D

Ordered as H8X170, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 170 mm (6.693 in), a cross section of 8 mm (0.315 in), and an outside diameter of 186 mm (7.32 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against hydraulic fluids, petroleum-based oils, and water. Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to ketones or strong acids will shorten service life.

Maintenance and OEM teams specify it across fluid power, general industrial maintenance, and hydraulic and pneumatic systems.

Order part number H8X170, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.