-250 WHITE BUNA 70D FDA O-RING

H70FDA250 is an AS568-250 white Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. It resists hydraulic fluids, greases and lubricants, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or strong acids call for a different compound.

This o-ring meets FDA requirements for food contact, is metal detectable for HACCP and foreign-body control programs. You will find this material specified across hydraulic and pneumatic systems, automotive, and construction equipment.

Order part number H70FDA250, sold individually. Nominal inside diameter is listed as 5 inch. Review your operating media and conditions against this specification before installation.