1.2MM CS X 4MM ID BLACK BUNA 70D

The H1.2X4 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4 mm (0.157 in), a cross section of 1.2 mm (0.047 in), and an outside diameter of 6.4 mm (0.25 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against hydraulic fluids, water, and many alcohols. Buna-N (Nitrile) offers low compression set under sustained load and the most widely specified general-purpose sealing elastomer. 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 ozone and direct sunlight.

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

This item is sold individually under part number H1.2X4. Unit weight is approximately 0.0001 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.