This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 23 mm (0.906 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 28 mm (1.1 in), catalogued under part number H2.5X23. It creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, strong abrasion and tear resistance. This material stands up to propane and butane, hydraulic fluids, and petroleum-based oils. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with ozone and direct sunlight or strong acids.
Maintenance and OEM teams specify it across agricultural equipment, fluid power, and construction equipment.
Stocked as H2.5X23 and sold individually. Unit weight is approximately 0.4781 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 23MM ID BLACK BUNA 70D
Actual Outside Diameter 28 mm (1.1 inch)
Actual Cross Section 2.5 mm (0.098 inch)
Actual Inside Diameter 23 mm (0.906 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity