3.5MM CS X 200MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 200 mm (7.874 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 207 mm (8.15 in), catalogued under part number H3.5X200. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against hydraulic fluids, greases and lubricants, and water. 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.

Maintenance and OEM teams specify it across construction equipment, automotive, and general industrial maintenance.

Stocked as H3.5X200 and sold individually. Unit weight is approximately 7.5 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.