This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 11 mm (0.433 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 18 mm (0.71 in), catalogued under part number H3.5X11. It delivers dependable bidirectional sealing in a compact groove envelope.
The compound resists greases and lubricants, petroleum-based oils, and many alcohols. Buna-N (Nitrile) offers low compression set under sustained load, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight.
Typical settings include construction equipment, automotive, and agricultural equipment.
Reference part number H3.5X11 when ordering; the item is sold individually. Unit weight is approximately 0.535 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description 3.5MM CS X 11MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 18 mm (0.71 inch)
Actual_CS 3.5 mm (0.138 inch)
Actual_ID 11 mm (0.433 inch)
ProductCode Description O-Rings - Metric - Commodity