-237 BLACK BUNA 70D O-RING

APG stocks the H70MD237, an AS568-237 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 3.359 in (85.32 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.637 in (92.38 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and low compression set under sustained load. This material stands up to hydraulic fluids, water, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ketones are present.

This item is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across construction equipment, hydraulic and pneumatic systems, and fluid power.

This item is sold individually under part number H70MD237. Nominal inside diameter is listed as 3 3/8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.