3.5MM CS X 5MM ID BLACK BUNA 70D

Ordered as H3.5X5, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5 mm (0.197 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 12 mm (0.47 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. The compound resists greases and lubricants, water, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or automotive brake fluid.

You will find this material specified across construction equipment, automotive, and agricultural equipment.

Reference part number H3.5X5 when ordering; the item is sold individually. Unit weight is approximately 0.308 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.