-426 BLACK BUNA 70D O-RING

Ordered as H70MD426, this is an AS568-426 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 4.6 in (116.84 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.15 in (130.81 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. Expect good resistance to greases and lubricants, petroleum-based oils, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or polar solvents call for a different compound.

This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across automotive, construction equipment, and fluid power.

Stocked as H70MD426 and sold individually. Nominal inside diameter is listed as 4 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. 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.