-125 BLACK BUNA 70D O-RING

APG stocks the H70125, an AS568-125 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.299 in (32.99 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.505 in (38.23 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists propane and butane, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) offers reliable performance in both static and dynamic service, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

You will find this material specified across fluid power, automotive, and construction equipment.

H70125 ships individually. Unit weight is approximately 0.0008 g and nominal inside diameter is listed as 1 5/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.