Buna 70-045-Black-Pk50

Ordered as SB-H70045-50, this is an AS568-045 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 3.989 in (101.32 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.129 in (104.88 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies. This item is further identified as 4.125IDX4"ODX.0625"CS.

Buna-N (Nitrile) is known for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. The compound resists water, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.

It sees regular use in construction equipment, fluid power, and automotive.

SB-H70045-50 ships by the bag. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.