Buna 70-230-Black-Pk5

Part number SB-H70230-5 is an AS568-230 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.484 in (63.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.762 in (70.15 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint. Additional detail on this item: 2.75IDX2.5"ODX.125"CS.

The material holds up against propane and butane, greases and lubricants, and many alcohols. Buna-N (Nitrile) is known for low compression set under sustained load, strong abrasion and tear resistance. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where polar solvents or automotive brake fluid are present.

It sees regular use in general industrial maintenance, agricultural equipment, and fluid power.

This item is sold by the bag under part number SB-H70230-5. Nominal inside diameter is listed as 2 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. 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.