7MM CS X 545MM ID BLACK BUNA 70D

H7X545 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 545 mm (21.457 in), a cross section of 7 mm (0.276 in), and an outside diameter of 559 mm (22.01 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to petroleum-based oils, greases and lubricants, and water. Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or ozone and direct sunlight.

Typical settings include general industrial maintenance, construction equipment, and fluid power.

Order part number H7X545, sold individually. Unit weight is approximately 79.73 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.