3.5MM CS X 44.7MM ID BLACK BUNA 90D

The H90M3.5X44.7 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 44.7 mm (1.76 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 51.7 mm (2.04 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces. This item is further identified as Metric O-RING, JIS P45.

Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against petroleum-based oils, hydraulic fluids, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

You will find this material specified across construction equipment, general industrial maintenance, and fluid power.

Order part number H90M3.5X44.7, sold individually. Unit weight is approximately 2.0342 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.