Buna 70-314-Black-Pk50

This o-ring is supplied in AS568-314 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 0.725 in (18.42 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.145 in (29.08 mm), catalogued under part number SB-H70314-50. It remains the most cost-effective sealing element available for pressurized assemblies. Supplementary detail from the product record: 1.125IDX.75"ODX.1875"CS.

The material holds up against hydraulic fluids, many alcohols, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is known for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with automotive brake fluid or polar solvents.

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

Reference part number SB-H70314-50 when ordering; the item is sold by the bag. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.