The SB-H70211-100 is an AS568-211 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.796 in (20.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.074 in (27.28 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Additional detail on this item: 1.0625IDX.8125"ODX.125"CS.
As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. This material stands up to hydraulic fluids, greases and lubricants, and water. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where strong acids or polar solvents are present.
You will find this material specified across construction equipment, hydraulic and pneumatic systems, and general industrial maintenance.
Order part number SB-H70211-100, sold by the bag. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description Buna 70-211-Black-Pk100
uf_description2 1.0625"IDX.8125"ODX.125"CS
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 0.796 inch (20.22 mm)
Actual_OD 1.074 inch (27.28 mm)
ProductCode Description O-Rings - Bagged - Commodity