Ordered as H5X9, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 9 mm (0.354 in), a cross section of 5 mm (0.197 in), and an outside diameter of 19 mm (0.75 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists petroleum-based oils, many alcohols, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
Common environments for this compound include construction equipment, agricultural equipment, and hydraulic and pneumatic systems.
Reference part number H5X9 when ordering; the item is sold individually. Unit weight is approximately 1.072 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 5MM CS X 9MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 19 mm (0.75 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 9 mm (0.354 inch)
ProductCode Description O-Rings - Metric - Commodity