This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A with an inside diameter of 25 mm (0.984 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 32 mm (1.26 in), catalogued under part number H3.5X25. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Expect good resistance to water, many alcohols, and greases and lubricants. Buna-N (Nitrile) delivers strong abrasion and tear resistance, low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or ozone and direct sunlight.
Common environments for this compound include automotive, construction equipment, and fluid power.
Reference part number H3.5X25 when ordering; the item is sold individually. Unit weight is approximately 1.052 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 3.5MM CS X 25MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 32 mm (1.26 inch)
Actual_CS 3.5 mm (0.138 inch)
Actual_ID 25 mm (0.984 inch)
ProductCode Description O-Rings - Metric - Commodity