3MM CS X 45MM ID BLACK BUNA 90D

H90M3X45 is a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 45 mm (1.772 in), a cross section of 3 mm (0.118 in), and an outside diameter of 51 mm (2.01 in). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists propane and butane, petroleum-based oils, and many alcohols. Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ozone and direct sunlight are present.

Typical settings include automotive, general industrial maintenance, and construction equipment.

Order part number H90M3X45, sold individually. Unit weight is approximately 1.38 g. Review your operating media and conditions against this specification before installation.