H3X126 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 126 mm (4.961 in), a cross section of 3 mm (0.118 in), and an outside diameter of 132 mm (5.2 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists water, propane and butane, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.
It sees regular use in automotive, agricultural equipment, and general industrial maintenance.
Reference part number H3X126 when ordering; the item is sold individually. Unit weight is approximately 3.57 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 3MM CS X 126MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 132 mm (5.2 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 126 mm (4.961 inch)
ProductCode Description O-Rings - Metric - Commodity