1MM CS X 12.5MM ID BLACK BUNA 70D

Part number H1X12.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 12.5 mm (0.492 in), a cross section of 1 mm (0.039 in), and an outside diameter of 14.5 mm (0.57 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

It resists hydraulic fluids, water, and petroleum-based oils. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ozone and direct sunlight or automotive brake fluid call for a different compound.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, general industrial maintenance, and agricultural equipment.

H1X12.5 ships individually. Unit weight is approximately 0.0429 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.