-249 BLACK BUNA 50D O-RING

Part number H50249 is an AS568-249 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 4.859 in (123.42 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.137 in (130.48 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is known for strong abrasion and tear resistance, reliable performance in both static and dynamic service. It resists water, propane and butane, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ketones or ozone and direct sunlight.

Common environments for this compound include construction equipment, general industrial maintenance, and automotive.

This item is sold individually under part number H50249. Nominal inside diameter is listed as 4 7/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.