-165 BLACK BUNA 90D O-RING

APG stocks the H90165, an AS568-165 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 6.487 in (164.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.693 in (170 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The compound resists water, propane and butane, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in automotive brake fluid or strong acids.

It sees regular use in construction equipment, hydraulic and pneumatic systems, and fluid power.

H90165 ships individually. Unit weight is approximately 3.759 g and nominal inside diameter is listed as 6 1/2 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.