Buna 70-250-Black-Pk10

This o-ring is supplied in AS568-250 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 4.984 in (126.59 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 5.262 in (133.65 mm), catalogued under part number SB-H70250-10. It remains the most cost-effective sealing element available for pressurized assemblies. The catalog record notes: 5.25IDX5"ODX.125"CS.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to many alcohols, water, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.

Typical settings include automotive, general industrial maintenance, and hydraulic and pneumatic systems.

SB-H70250-10 ships by the bag. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.