5MM CS X 165MM ID BLACK BUNA 90D

APG stocks the H90M5X165, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 165 mm (6.496 in), a cross section of 5 mm (0.197 in), and an outside diameter of 175 mm (6.89 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists greases and lubricants, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or strong acids call for a different compound.

Maintenance and OEM teams specify it across automotive, fluid power, and hydraulic and pneumatic systems.

H90M5X165 ships individually. Unit weight is approximately 13.9 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.