H90M3X34.5 is a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 34.5 mm (1.358 in), a cross section of 3 mm (0.118 in), and an outside diameter of 40.5 mm (1.59 in). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. Expect good resistance to greases and lubricants, many alcohols, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
It sees regular use in construction equipment, general industrial maintenance, and fluid power.
This item is sold individually under part number H90M3X34.5. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 3MM CS X 34.5MM ID BLACK BUNA 90D
Actual Outside Diameter 40.5 mm (1.59 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 34.5 mm (1.358 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity