-316 BLACK BUNA 70D O-RING

Part number H70316 is an AS568-316 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.85 in (21.59 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.27 in (32.26 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

It resists propane and butane, petroleum-based oils, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) offers an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving polar solvents or automotive brake fluid call for a different compound.

Common environments for this compound include automotive, hydraulic and pneumatic systems, and construction equipment.

H70316 ships individually. Unit weight is approximately 2.3199 g and nominal inside diameter is listed as 7/8 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.