-918 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-918 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 1.355 in (34.42 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.587 in (40.31 mm), catalogued under part number H70MD918. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against water, hydraulic fluids, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or strong acids.

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

Stocked as H70MD918 and sold individually. Nominal inside diameter is listed as 1 1/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.