3MM CS X 97MM ID BLACK BUNA 70D

Part number H3X97 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 97 mm (3.819 in), a cross section of 3 mm (0.118 in), and an outside diameter of 103 mm (4.06 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against many alcohols, hydraulic fluids, and water. Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs and low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where automotive brake fluid or ozone and direct sunlight are present.

Maintenance and OEM teams specify it across construction equipment, fluid power, and general industrial maintenance.

H3X97 ships individually. Unit weight is approximately 2.85 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.