H5.7X299.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 299.3 mm (11.783 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 310.7 mm (12.23 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: Metric O-RING, JIS G300.
This material stands up to many alcohols, propane and butane, and greases and lubricants. Buna-N (Nitrile) offers low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.
Typical settings include hydraulic and pneumatic systems, automotive, and general industrial maintenance.
Order part number H5.7X299.3, sold individually. Unit weight is approximately 29.306 g. Review your operating media and conditions against this specification before installation.
Description 5.7MM CS X 299.3MM ID BLACK BUNA 70D
Actual Outside Diameter 310.7 mm (12.23 inch)
Actual Cross Section 5.7 mm (0.224 inch)
Actual Inside Diameter 299.3 mm (11.783 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity