Buna 70-273-Black-Pk5

APG stocks the SB-H70273-5, an AS568-273 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 9.734 in (247.24 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 10.012 in (254.3 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. This item is further identified as 10IDX9.75"ODX.125"CS.

It resists greases and lubricants, hydraulic fluids, and petroleum-based oils. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

Reference part number SB-H70273-5 when ordering; the item is sold by the bag. Nominal inside diameter is listed as 9 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.