This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 145 mm (5.709 in), a cross section of 4 mm (0.157 in), and an outside diameter of 153 mm (6.02 in), catalogued under part number H4X145. It compresses into its gland to block fluid or gas migration across a joint.
As a material, Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. It resists greases and lubricants, water, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to ozone and direct sunlight or ketones will shorten service life.
You will find this material specified across fluid power, automotive, and hydraulic and pneumatic systems.
This item is sold individually under part number H4X145. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
description 4MM CS X 145MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 153 mm (6.02 inch)
Actual_CS 4 mm (0.157 inch)
Actual_ID 145 mm (5.709 inch)
ProductCode Description O-Rings - Metric - Commodity