The H1.78X14 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 14 mm (0.551 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 17.56 mm (0.69 in). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against hydraulic fluids, greases and lubricants, and water. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or ozone and direct sunlight.
Typical settings include agricultural equipment, automotive, and construction equipment.
Stocked as H1.78X14 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description 1.78MM CS X 14MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 17.56 mm (0.69 inch)
Actual_CS 1.78 mm (0.07 inch)
Actual_ID 14 mm (0.551 inch)
ProductCode Description O-Rings - Metric - Commodity