Ordered as H2X65, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 65 mm (2.559 in), a cross section of 2 mm (0.079 in), and an outside diameter of 69 mm (2.72 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists water, hydraulic fluids, 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 ketones are present.
You will find this material specified across automotive, hydraulic and pneumatic systems, and fluid power.
Order part number H2X65, sold individually. Unit weight is approximately 0.826 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 2MM CS X 65MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 69 mm (2.72 inch)
Actual_CS 2 mm (0.079 inch)
Actual_ID 65 mm (2.559 inch)
ProductCode Description O-Rings - Metric - Commodity