1.25MM CS X 3.8MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 3.8 mm (0.15 in), a cross section of 1.25 mm (0.049 in), and an outside diameter of 6.3 mm (0.25 in), catalogued under part number H1.25X3.8. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. Expect good resistance to propane and butane, petroleum-based oils, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or strong acids.

Maintenance and OEM teams specify it across general industrial maintenance, construction equipment, and agricultural equipment.

Stocked as H1.25X3.8 and sold individually. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.