3.55MM CS X 140MM ID BLACK BUNA 70D

APG stocks the H3.55X140, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 140 mm (5.512 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 147.1 mm (5.79 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, reliable performance in both static and dynamic service. It resists petroleum-based oils, hydraulic fluids, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or automotive brake fluid.

It sees regular use in construction equipment, general industrial maintenance, and automotive.

H3.55X140 ships individually. Unit weight is approximately 5.4455 g. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.