Part number H90M3X28 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 28 mm (1.102 in), a cross section of 3 mm (0.118 in), and an outside diameter of 34 mm (1.34 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Expect good resistance to water, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
Common environments for this compound include fluid power, construction equipment, and general industrial maintenance.
H90M3X28 ships individually. Unit weight is approximately 0.91 g. Check the compound against your process media, pressure and temperature before committing to a design. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description 3MM CS X 28MM ID BLACK BUNA 90D
Actual Outside Diameter 34 mm (1.34 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 28 mm (1.102 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity