Part number H2.5X100 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 100 mm (3.937 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 105 mm (4.13 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.
The compound resists propane and butane, petroleum-based oils, and hydraulic fluids. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or ozone and direct sunlight will shorten service life.
Typical settings include hydraulic and pneumatic systems, automotive, and agricultural equipment.
Reference part number H2.5X100 when ordering; the item is sold individually. Unit weight is approximately 2.065 g. 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 2.5MM CS X 100MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 105 mm (4.13 inch)
Actual_CS 2.5 mm (0.098 inch)
Actual_ID 100 mm (3.937 inch)
ProductCode Description O-Rings - Metric - Commodity