-144 BLACK BUNA 70D O-RING

Ordered as H70MD144, this is an AS568-144 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.487 in (63.17 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.693 in (68.4 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists petroleum-based oils, hydraulic fluids, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving automotive brake fluid or ketones call for a different compound.

This item is metal detectable for HACCP and foreign-body control programs. Typical settings include agricultural equipment, hydraulic and pneumatic systems, and fluid power.

Order part number H70MD144, sold individually. Nominal inside diameter is listed as 2 1/2 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.