-109 WHITE BUNA 70D FDA O-RING

APG stocks the H70FDA109, an AS568-109 white Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 0.299 in (7.59 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.505 in (12.83 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to many alcohols, propane and butane, and hydraulic fluids. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or ketones are present.

The compound meets FDA requirements for food contact under 21 CFR 177.2600. Common environments for this compound include automotive, general industrial maintenance, and hydraulic and pneumatic systems.

Reference part number H70FDA109 when ordering; the item is sold individually. Nominal inside diameter is listed as 5/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.