3.1MM CS X 29.4MM ID BLACK BUNA 70D

The H3.1X29.4 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 29.4 mm (1.157 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 35.6 mm (1.4 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Supplementary detail from the product record: Metric O-RING, JIS G30.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, most widely specified general-purpose sealing elastomer. The compound resists hydraulic fluids, petroleum-based oils, and many alcohols. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or automotive brake fluid are present.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, automotive, and fluid power.

Reference part number H3.1X29.4 when ordering; the item is sold individually. Unit weight is approximately 0.9558 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.