This o-ring is supplied in AS568-911 black Buna-N (Nitrile) 50 Shore A supplied with an inside diameter of 0.863 in (21.92 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.095 in (27.81 mm), catalogued under part number H50911. It creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. Expect good resistance to greases and lubricants, propane and butane, and hydraulic fluids. 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.
It sees regular use in fluid power, automotive, and hydraulic and pneumatic systems.
Order part number H50911, sold individually. Nominal inside diameter is listed as 11/16 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -911 BLACK BUNA 50D O-RING
Actual Cross Section 0.116 inch (2.95 mm)
Actual Inside Diameter 0.863 inch (21.92 mm)
Actual Outside Diameter 1.095 inch (27.81 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity