5.7MM CS X 149.3MM ID BLACK BUNA 70D

APG stocks the H5.7X149.3, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 149.3 mm (5.878 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 160.7 mm (6.33 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. This item is further identified as Metric O-RING, JIS G150.

Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. Expect good resistance to water, petroleum-based oils, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight.

Maintenance and OEM teams specify it across fluid power, agricultural equipment, and automotive.

Stocked as H5.7X149.3 and sold individually. Unit weight is approximately 15.227 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.