2MM CS X 4MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 4 mm (0.157 in), a cross section of 2 mm (0.079 in), and an outside diameter of 8 mm (0.31 in), catalogued under part number H2X4. It delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to greases and lubricants, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

You will find this material specified across general industrial maintenance, agricultural equipment, and hydraulic and pneumatic systems.

Reference part number H2X4 when ordering; the item is sold individually. Unit weight is approximately 0.0737 g. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.