-011 WHITE BUNA 70D FDA O-RING

The H70FDA011 is an AS568-011 white Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 0.301 in (7.65 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.441 in (11.2 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against greases and lubricants, hydraulic fluids, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is known for strong abrasion and tear resistance, low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.

This o-ring meets FDA requirements for food contact under 21 CFR 177.2600. Typical settings include fluid power, general industrial maintenance, and construction equipment.

Order part number H70FDA011, sold individually. Unit weight is approximately 0.09 g and nominal inside diameter is listed as 5/16 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.