-340 BLACK BUNA 90D O-RING

Ordered as H90340, this is an AS568-340 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 3.35 in (85.09 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.77 in (95.76 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, economical choice for high-volume maintenance programs. The material holds up against many alcohols, water, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or polar solvents will shorten service life.

Typical settings include construction equipment, fluid power, and hydraulic and pneumatic systems.

Reference part number H90340 when ordering; the item is sold individually. Unit weight is approximately 8.267 g and nominal inside diameter is listed as 3 3/8 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.