APG stocks the H3.6X19.8, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 19.8 mm (0.78 in), a cross section of 3.6 mm (0.142 in), and an outside diameter of 27 mm (1.06 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.
This material stands up to propane and butane, many alcohols, and greases and lubricants. Buna-N (Nitrile) offers the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or strong acids are present.
Typical settings include agricultural equipment, fluid power, and construction equipment.
Reference part number H3.6X19.8 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
description 3.6MM CS X 19.8MM ID BLACK BUNA 70D
uf_description2 METRIC O-RING
Actual_OD 27 mm (1.06 inch)
Actual_CS 3.6 mm (0.142 inch)
Actual_ID 19.8 mm (0.78 inch)
ProductCode Description O-Rings - Metric - Commodity