-120 BLACK BUNA 50D O-RING

APG stocks the H50120, an AS568-120 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 0.987 in (25.07 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.193 in (30.3 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. This material stands up to greases and lubricants, many alcohols, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ozone and direct sunlight call for a different compound.

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

H50120 ships individually. Unit weight is approximately 0.0006 g and nominal inside diameter is listed as 1 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.