-246 WHITE BUNA 70D FDA O-RING

Part number H70FDA246 is an AS568-246 white Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.484 in (113.89 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.762 in (120.95 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists propane and butane, water, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or strong acids are present.

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

Reference part number H70FDA246 when ordering; the item is sold individually. Nominal inside diameter is listed as 4 1/2 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.