The H90225 is an AS568-225 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 1.859 in (47.22 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 2.137 in (54.28 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material holds up against many alcohols, petroleum-based oils, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or ketones are present.
You will find this material specified across general industrial maintenance, fluid power, and automotive.
H90225 ships individually. Unit weight is approximately 2.087 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -225 BLACK BUNA 90D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 1.859 inch (47.22 mm)
Actual Outside Diameter 2.137 inch (54.28 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity