This o-ring is supplied in AS568-013 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 0.426 in (10.82 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.566 in (14.38 mm), catalogued under part number H70013. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
This material stands up to petroleum-based oils, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in agricultural equipment, fluid power, and general industrial maintenance.
Stocked as H70013 and sold individually. Unit weight is approximately 0.1246 g and nominal inside diameter is listed as 7/16 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.
Description -013 BLACK BUNA 70D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 0.426 inch (10.82 mm)
Actual Outside Diameter 0.566 inch (14.38 )
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity