-045 BLACK BUNA 90D O-RING

H90045 is an AS568-045 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 3.989 in (101.32 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.129 in (104.88 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. The compound resists propane and butane, water, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Common environments for this compound include automotive, hydraulic and pneumatic systems, and construction equipment.

Reference part number H90045 when ordering; the item is sold individually. Unit weight is approximately 1.1574 g. Check the compound against your process media, pressure and temperature before committing to a design.