Buna 70-354-Black-Pk5

SB-H70354-5 is an AS568-354 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5.1 in (129.54 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.52 in (140.21 mm). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. This item is further identified as 0.210CSX5.100"IDX5.520"OD.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The compound resists many alcohols, propane and butane, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ketones or strong acids will shorten service life.

Common environments for this compound include general industrial maintenance, automotive, and agricultural equipment.

This item is sold by the bag under part number SB-H70354-5. Application requirements vary, so validate compatibility with your process conditions prior to 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.