-235 BLACK BUNA 70D O-RING

The H70MD235 is an AS568-235 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 3.109 in (78.97 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.387 in (86.03 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to many alcohols, hydraulic fluids, and water. Buna-N (Nitrile) offers strong abrasion and tear resistance, low compression set under sustained load. 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 ketones or ozone and direct sunlight.

This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include automotive, construction equipment, and general industrial maintenance.

Order part number H70MD235, sold individually. Nominal inside diameter is listed as 3 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.