5.7MM CS X 84.2MM ID BLACK BUNA 90D

This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A with an inside diameter of 84.2 mm (3.315 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 95.6 mm (3.76 in), catalogued under part number H90M5.7X84.2. It compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) delivers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists greases and lubricants, petroleum-based oils, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where automotive brake fluid or strong acids are present.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H90M5.7X84.2. Application requirements vary, so validate compatibility with your process conditions prior to installation.