5.7MM CS X 184.3MM ID BLACK BUNA 70D

Part number H5.7X184.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 184.3 mm (7.256 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 195.7 mm (7.7 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS G185.

The material holds up against greases and lubricants, many alcohols, and petroleum-based oils. Buna-N (Nitrile) offers strong abrasion and tear resistance, 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 is not the right choice where ozone and direct sunlight or polar solvents are present.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, automotive, and construction equipment.

Order part number H5.7X184.3, sold individually. Unit weight is approximately 18.435 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.