This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 7 mm (0.276 in), a cross section of 1.8 mm (0.071 in), and an outside diameter of 10.6 mm (0.42 in), catalogued under part number H.7X1.8. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
This material stands up to hydraulic fluids, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. 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 ketones or polar solvents are present.
It sees regular use in fluid power, agricultural equipment, and hydraulic and pneumatic systems.
Reference part number H.7X1.8 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 1.8MM CS X 7MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 10.6 mm (0.42 inch)
Actual_CS 1.8 mm (0.071 inch)
Actual_ID 7 mm (0.276 inch)
ProductCode Description O-Rings - Metric - Commodity