Part number H1.9X7.2 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 7.2 mm (0.283 in), a cross section of 1.9 mm (0.075 in), and an outside diameter of 11 mm (0.43 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material holds up against water, many alcohols, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving polar solvents or ozone and direct sunlight call for a different compound.
It sees regular use in construction equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Reference part number H1.9X7.2 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description 1.9MM CS X 7.2MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 11 mm (0.43 inch)
Actual_CS 1.9 mm (0.075 inch)
Actual_ID 7.2 mm (0.283 inch)
ProductCode Description O-Rings - Metric - Commodity