-233 BLACK BUNA 70D O-RING

H70MD233 is an AS568-233 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.859 in (72.62 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.137 in (79.68 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is known for low compression set under sustained load and an economical choice for high-volume maintenance programs. The material holds up against hydraulic fluids, propane and butane, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to automotive brake fluid or polar solvents will shorten service life.

This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include agricultural equipment, construction equipment, and hydraulic and pneumatic systems.

Reference part number H70MD233 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 7/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.