Ordered as H3X82, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 82 mm (3.228 in), a cross section of 3 mm (0.118 in), and an outside diameter of 88 mm (3.46 in). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. It resists many alcohols, greases and lubricants, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in polar solvents or strong acids.
Maintenance and OEM teams specify it across construction equipment, automotive, and fluid power.
Order part number H3X82, sold individually. Unit weight is approximately 2.31 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 82MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 88 mm (3.46 inch)
Actual_CS 3 mm (0.118 inch)
Actual_ID 82 mm (3.228 inch)
ProductCode Description O-Rings - Metric - Commodity