-231 WHITE BUNA 70D FDA O-RING

The H70FDA231 is an AS568-231 white Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.609 in (66.27 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.887 in (73.33 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. Expect good resistance to propane and butane, many alcohols, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving automotive brake fluid or strong acids call for a different compound.

This item meets FDA requirements for food contact, is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, construction equipment, and agricultural equipment.

Order part number H70FDA231, sold individually. Unit weight is approximately 2.8 g and nominal inside diameter is listed as 2 5/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.