Buna 70-319-Black-Pk50

APG stocks the SB-H70319-50, an AS568-319 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.037 in (26.34 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.457 in (37.01 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Additional detail on this item: 0.210CSX1.037"IDX1.457"OD.

The compound resists petroleum-based oils, water, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, 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 strong acids or ozone and direct sunlight are present.

Typical settings include agricultural equipment, automotive, and hydraulic and pneumatic systems.

Order part number SB-H70319-50, sold by the bag. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.