Ordered as H2.5X43, this is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 43 mm (1.693 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 48 mm (1.89 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. It resists petroleum-based oils, hydraulic fluids, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in hydraulic and pneumatic systems, construction equipment, and agricultural equipment.
Stocked as H2.5X43 and sold individually. Unit weight is approximately 0.857 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 2.5MM CS X 43MM ID BLACK BUNA 70D
Actual Outside Diameter 48 mm (1.89 inch)
Actual Cross Section 2.5 mm (0.098 inch)
Actual Inside Diameter 43 mm (1.693 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity