The H5.7X174.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 174.2 mm (6.858 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 185.6 mm (7.31 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
The material holds up against petroleum-based oils, water, and propane and butane. Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or ozone and direct sunlight will shorten service life.
Typical settings include automotive, hydraulic and pneumatic systems, and fluid power.
Order part number H5.7X174.2, sold individually. Unit weight is approximately 17.453 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 5.7MM CS X 174.2MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 185.6 mm (7.31 inch)
Actual_CS 5.7 mm (0.224 inch)
Actual_ID 174.2 mm (6.858 inch)
ProductCode Description O-Rings - Metric - Commodity