Ordered as H2.5X66, this is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 66 mm (2.598 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 71 mm (2.8 in). The o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists many alcohols, greases and lubricants, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or strong acids.
You will find this material specified across fluid power, automotive, and hydraulic and pneumatic systems.
H2.5X66 ships individually. Unit weight is approximately 1.3003 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description 2.5MM CS X 66MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 71 mm (2.8 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 66 mm (2.598 inch)
ProductCode Description O-Rings - Metric - Commodity