Part number H3X149 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 149 mm (5.866 in), a cross section of 3 mm (0.118 in), and an outside diameter of 155 mm (6.1 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
The compound resists many alcohols, propane and butane, and water. Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ketones are present.
You will find this material specified across hydraulic and pneumatic systems, fluid power, and construction equipment.
Order part number H3X149, sold individually. Unit weight is approximately 4.122 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description 3MM CS X 149MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 155 mm (6.1 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 149 mm (5.866 inch)
ProductCode Description O-Rings - Metric - Commodity