3.5MM CS X 39.7MM ID BLACK BUNA 90D

The H90M3.5X39.7 is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 39.7 mm (1.563 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 46.7 mm (1.84 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: Metric O-RING, JIS P40.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. This material stands up to propane and butane, water, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or polar solvents call for a different compound.

You will find this material specified across fluid power, agricultural equipment, and automotive.

Reference part number H90M3.5X39.7 when ordering; the item is sold individually. Unit weight is approximately 1.8185 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.