3.55MM CS X 97.5MM ID BLACK BUNA 70D

The H3.55X97.5 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 97.5 mm (3.839 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 104.6 mm (4.12 in). This o-ring compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. It resists petroleum-based oils, propane and butane, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with ozone and direct sunlight or ketones.

Common environments for this compound include automotive, hydraulic and pneumatic systems, and construction equipment.

Order part number H3.55X97.5, sold individually. Unit weight is approximately 3.871 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. 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.