The H2.5X170 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 170 mm (6.693 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 175 mm (6.89 in). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Buna-N (Nitrile) is specified for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Expect good resistance to propane and butane, petroleum-based oils, and water. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
Maintenance and OEM teams specify it across automotive, construction equipment, and general industrial maintenance.
Order part number H2.5X170, sold individually. Unit weight is approximately 3.354 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description 2.5MM CS X 170MM ID BLACK BUNA 70D
Actual Outside Diameter 175 mm (6.89 inch)
Actual Cross Section 2.5 mm (0.098 inch)
Actual Inside Diameter 170 mm (6.693 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity