-357 BLACK BUNA 70D O-RING

This o-ring is supplied in AS568-357 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 5.475 in (139.07 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.895 in (149.73 mm), catalogued under part number H70MD357. It compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The compound resists petroleum-based oils, hydraulic fluids, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with polar solvents or automotive brake fluid.

The compound is metal detectable for HACCP and foreign-body control programs. Typical settings include construction equipment, general industrial maintenance, and agricultural equipment.

This item is sold individually under part number H70MD357. Nominal inside diameter is listed as 5 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.