Buna 70-026-Black-Pk15

SB-H70026-15 is an AS568-026 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 1.239 in (31.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.379 in (35.03 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: 1.375IDX1.25"ODX.0625"CS.

Expect good resistance to greases and lubricants, many alcohols, and petroleum-based oils. Buna-N (Nitrile) is widely chosen for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.

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

This item is sold by the bag under part number SB-H70026-15. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.