APG stocks the H3X29.2, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 29.2 mm (1.15 in), a cross section of 3 mm (0.118 in), and an outside diameter of 35.2 mm (1.39 in). An o-ring compresses into its gland to block fluid or gas migration across a joint.
The compound resists propane and butane, petroleum-based oils, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
Common environments for this compound include general industrial maintenance, hydraulic and pneumatic systems, and automotive.
Order part number H3X29.2, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description 3MM CS X 29.2MM ID BLACK BUNA 70D
Actual Outside Diameter 35.2 mm (1.39 inch)
Actual Cross Section 3 mm (0.118 inch)
Actual Inside Diameter 29.2 mm (1.15 inch)
Measurement System Metric
Product Category O-Rings - Metric - Commodity