3.5MM CS X 240MM ID BLACK BUNA 70D

Ordered as H3.5X240, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 240 mm (9.449 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 247 mm (9.72 in). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to greases and lubricants, hydraulic fluids, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to strong acids or ketones will shorten service life.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, general industrial maintenance, and fluid power.

This item is sold individually under part number H3.5X240. Unit weight is approximately 9.03 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.