.625" C/S (5/8") (15.88 MM)

The 0284625 is a black Buna-N (Nitrile) 70 Shore A O-Ring Cord Stock measuring a cross section of 0.625 in (15.88 mm). This o-ring cord stock provides continuous extruded stock for building one-off or oversized rings.

Expect good resistance to propane and butane, hydraulic fluids, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It should not be specified for service in ketones or automotive brake fluid.

It sees regular use in construction equipment, automotive, and hydraulic and pneumatic systems.

Reference part number 0284625 when ordering; the item is sold by the foot. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.