-034 BLACK BUNA 90D O-RING

APG stocks the H90034, an AS568-034 black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 2.114 in (53.7 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.254 in (57.25 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified for low compression set under sustained load, strong abrasion and tear resistance. Expect good resistance to water, many alcohols, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ketones or automotive brake fluid.

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

This item is sold individually under part number H90034. Unit weight is approximately 0.5861 g and nominal inside diameter is listed as 2 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.