2MM CS X 4MM ID BLACK BUNA 90D

H90M2X4 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 4 mm (0.157 in), a cross section of 2 mm (0.079 in), and an outside diameter of 8 mm (0.31 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. This material stands up to many alcohols, propane and butane, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

It sees regular use in construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.

Reference part number H90M2X4 when ordering; the item is sold individually. Unit weight is approximately 0.0776 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.