-255 BLACK BUNA 90D O-RING

H90255 is an AS568-255 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 5.609 in (142.47 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.887 in (149.53 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Expect good resistance to hydraulic fluids, many alcohols, and petroleum-based oils. Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs and low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

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

Reference part number H90255 when ordering; the item is sold individually. Unit weight is approximately 6.0664 g. Check the compound against your process media, pressure and temperature before committing to a design.