3.55MM CS X 80MM ID BLACK BUNA 70D

APG stocks the H3.55X80, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 80 mm (3.15 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 87.1 mm (3.43 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against propane and butane, greases and lubricants, and water. Buna-N (Nitrile) is known for low compression set under sustained load, 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). Verify compatibility before use with automotive brake fluid or strong acids.

Common environments for this compound include fluid power, agricultural equipment, and construction equipment.

Reference part number H3.55X80 when ordering; the item is sold individually. Unit weight is approximately 3.13 g. 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.