This o-ring is supplied in AS568-136 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 1.987 in (50.47 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.193 in (55.7 mm), catalogued under part number H70MD136. It remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against greases and lubricants, water, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or ozone and direct sunlight are present.
The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across general industrial maintenance, hydraulic and pneumatic systems, and construction equipment.
Reference part number H70MD136 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description -136 BLACK BUNA 70D O-RING
uf_description2 METAL DETECTABLE, 0.103" (2.62MM) CS X 1.987" (50.47MM) ID
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 1.987 inch (50.47 mm)
Actual_OD 2.193 inch (55.7 mm)
ProductCode Description O-Rings - FDA / Metal Detectable