1.78MM CS X 36MM ID BLACK BUNA 70D

Ordered as H1.78X36, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 36 mm (1.417 in), a cross section of 1.78 mm (0.07 in), and an outside diameter of 39.56 mm (1.56 in). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The compound resists hydraulic fluids, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or ketones call for a different compound.

Typical settings include construction equipment, fluid power, and agricultural equipment.

Reference part number H1.78X36 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. 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.