Buna 70-131-Black-Pk10

Part number SB-H70131-10 is an AS568-131 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.674 in (42.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.88 in (47.75 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: 0.103CSX1.674"IDX1.880"OD.

The compound resists water, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or strong acids.

It sees regular use in automotive, fluid power, and agricultural equipment.

Reference part number SB-H70131-10 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 1 11/16 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.