APG stocks the SB-H70151-50, an AS568-151 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 2.987 in (75.87 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.193 in (81.1 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. This item is further identified as 3.1875IDX3"ODX.0938"CS.
Buna-N (Nitrile) offers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Expect good resistance to hydraulic fluids, water, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ozone and direct sunlight are present.
Typical settings include construction equipment, fluid power, and hydraulic and pneumatic systems.
This item is sold by the bag under part number SB-H70151-50. 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.
description Buna 70-151-Black-Pk50
uf_description2 3.1875"IDX3"ODX.0938"CS
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 2.987 inch (75.87 mm)
Actual_OD 3.193 inch (81.1 mm)
ProductCode Description O-Rings - Bagged - Commodity