-231 BLACK BUNA 70D O-RING

Part number H70MD231 is an AS568-231 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.609 in (66.27 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.887 in (73.33 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. This material stands up to petroleum-based oils, many alcohols, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or polar solvents.

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

Stocked as H70MD231 and sold individually. Nominal inside diameter is listed as 2 5/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.