-158 BLACK BUNA 90D O-RING

Part number H90158 is an AS568-158 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 4.737 in (120.32 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.943 in (125.55 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. This material stands up to many alcohols, petroleum-based oils, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or ketones call for a different compound.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Order part number H90158, sold individually. Unit weight is approximately 2.814 g and nominal inside diameter is listed as 4 3/4 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.