3.5MM CS X 38.7MM ID BLACK BUNA 70D

APG stocks the H3.5X38.7, a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 38.7 mm (1.524 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 45.7 mm (1.8 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. The catalog record notes: Metric O-RING, JIS P39.

Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. It resists greases and lubricants, propane and butane, and hydraulic fluids. 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 polar solvents.

Common environments for this compound include hydraulic and pneumatic systems, general industrial maintenance, and fluid power.

Reference part number H3.5X38.7 when ordering; the item is sold individually. Unit weight is approximately 1.5789 g. Review your operating media and conditions against this specification before installation.