-112 WHITE BUNA 70D FDA O-RING

APG stocks the H70FDA112, an AS568-112 white Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.487 in (12.37 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.693 in (17.6 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

The compound resists water, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

This item meets FDA requirements for food contact under 21 CFR 177.2600. You will find this material specified across hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Stocked as H70FDA112 and sold individually. Unit weight is approximately 0.312 g and nominal inside diameter is listed as 1/2 inch. 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.