1.6MM CS X 5.5MM ID BLACK BUNA 70D

The H1.6X5.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 5.5 mm (0.217 in), a cross section of 1.6 mm (0.063 in), and an outside diameter of 8.7 mm (0.34 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to greases and lubricants, water, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ketones are present.

It sees regular use in hydraulic and pneumatic systems, construction equipment, and general industrial maintenance.

Order part number H1.6X5.5, sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.