Part number H5X168 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 168 mm (6.614 in), a cross section of 5 mm (0.197 in), and an outside diameter of 178 mm (7.01 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.
The material holds up against water, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or automotive brake fluid.
It sees regular use in automotive, agricultural equipment, and general industrial maintenance.
H5X168 ships individually. 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 5MM CS X 168MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 178 mm (7.01 inch)
Actual_CS 5 mm (0.197 inch)
Actual_ID 168 mm (6.614 inch)
ProductCode Description O-Rings - Metric - Commodity