4MM CS X 220MM ID BLACK BUNA 70D

APG stocks the H4X220, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 220 mm (8.661 in), a cross section of 4 mm (0.157 in), and an outside diameter of 228 mm (8.98 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The compound resists petroleum-based oils, hydraulic fluids, and water. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

Common environments for this compound include general industrial maintenance, agricultural equipment, and automotive.

Reference part number H4X220 when ordering; the item is sold individually. Unit weight is approximately 0.0108 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.