5.7MM CS X 129.6MM ID BLACK BUNA 70D

APG stocks the H5.7X129.6, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 129.6 mm (5.102 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 141 mm (5.55 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. Source specification: Metric O-RING, JIS P130.

The compound resists water, hydraulic fluids, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life.

You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and automotive.

H5.7X129.6 ships individually. Unit weight is approximately 13.319 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.