3.1MM CS X 104.4MM ID BLACK BUNA 70D

APG stocks the H3.1X104.4, a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 104.4 mm (4.11 in), a cross section of 3.1 mm (0.122 in), and an outside diameter of 110.6 mm (4.35 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. The catalog record notes: Metric O-RING, JIS G105.

Buna-N (Nitrile) delivers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The material holds up against greases and lubricants, petroleum-based oils, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, general industrial maintenance, and construction equipment.

Stocked as H3.1X104.4 and sold individually. Unit weight is approximately 3.4538 g. Check the compound against your process media, pressure and temperature before committing to a design.