5.7MM CS X 194.3MM ID BLACK BUNA 90D

Ordered as H90M5.7X194.3, this is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 194.3 mm (7.65 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 205.7 mm (8.1 in). The o-ring compresses into its gland to block fluid or gas migration across a joint. Source specification: Metric O-RING, JIS G195.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against many alcohols, water, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving polar solvents or ozone and direct sunlight call for a different compound.

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

Order part number H90M5.7X194.3, sold individually. Unit weight is approximately 21.976 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. For a size or compound outside the standard catalog, APG can quote from a print or sample.