-149 BLACK BUNA 50D O-RING

This o-ring is supplied in AS568-149 black Buna-N (Nitrile) 50 Shore A supplied with an inside diameter of 2.8 in (71.12 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.006 in (76.35 mm), catalogued under part number H50149. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for low compression set under sustained load and economical choice for high-volume maintenance programs. The compound resists water, propane and butane, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or strong acids call for a different compound.

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

Reference part number H50149 when ordering; the item is sold individually. Nominal inside diameter is listed as 2 13/16 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.