Ordered as H1.5X1.8, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.8 mm (0.071 in), a cross section of 1.5 mm (0.059 in), and an outside diameter of 4.8 mm (0.19 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to many alcohols, water, and hydraulic fluids. Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or ozone and direct sunlight.
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and automotive.
Reference part number H1.5X1.8 when ordering; the item is sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 1.5MM CS X 1.8MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 4.8 mm (0.19 inch)
Actual_CS 1.5 mm (0.059 inch)
Actual_ID 1.8 mm (0.071 inch)
ProductCode Description O-Rings - Metric - Commodity