Buna 70-040-Black-Pk100

This o-ring is supplied in AS568-040 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 2.864 in (72.75 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.004 in (76.3 mm), catalogued under part number SB-H70040-100. It compresses into its gland to block fluid or gas migration across a joint. Additional detail on this item: 3IDX2.875"ODX.0625"CS.

Expect good resistance to propane and butane, water, and hydraulic fluids. Buna-N (Nitrile) delivers strong abrasion and tear resistance, low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ketones or strong acids.

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

Stocked as SB-H70040-100 and sold by the bag. Nominal inside diameter is listed as 2 7/8 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.