-474 BLACK BUNA 90D O-RING

The H90474 is an AS568-474 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 24.94 in (633.48 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 25.49 in (647.45 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Expect good resistance to petroleum-based oils, propane and butane, and water. Buna-N (Nitrile) offers low compression set under sustained load and an economical choice for high-volume maintenance programs. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

Common environments for this compound include agricultural equipment, fluid power, and construction equipment.

Reference part number H90474 when ordering; the item is sold individually. Unit weight is approximately 107.5 g. As always, verify media compatibility and operating conditions against the requirements of your specific application.