Ordered as H70906, this is an AS568-906 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 0.468 in (11.89 mm), a cross section of 0.078 in (1.98 mm), and an outside diameter of 0.624 in (15.85 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists water, many alcohols, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
Maintenance and OEM teams specify it across fluid power, general industrial maintenance, and automotive.
H70906 ships individually. Unit weight is approximately 0.1683 g. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description -906 BLACK BUNA 70D O-RING
Actual Cross Section 0.078 inch (1.98 mm)
Actual Inside Diameter 0.468 inch (11.89 mm)
Actual Outside Diameter 0.624 inch (15.85 )
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity