-393 BLACK BUNA 70D O-RING

APG stocks the H70393, an AS568-393 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 23.94 in (608.08 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 24.36 in (618.74 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for low compression set under sustained load and most widely specified general-purpose sealing elastomer. This material stands up to hydraulic fluids, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or polar solvents call for a different compound.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and fluid power.

H70393 ships individually. Unit weight is approximately 52.5124 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.