-326 BLACK BUNA 90D O-RING

APG stocks the H90326, an AS568-326 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 1.6 in (40.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.02 in (51.31 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, most widely specified general-purpose sealing elastomer. This material stands up to hydraulic fluids, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving strong acids or ketones call for a different compound.

Maintenance and OEM teams specify it across automotive, agricultural equipment, and construction equipment.

This item is sold individually under part number H90326. Unit weight is approximately 4.13 g and nominal inside diameter is listed as 1 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.