This o-ring is supplied in AS568-264 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 7.484 in (190.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.762 in (197.15 mm), catalogued under part number H70MD264. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.
Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. The compound resists water, greases and lubricants, and propane and butane. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).
The compound is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across automotive, agricultural equipment, and hydraulic and pneumatic systems.
H70MD264 ships individually. Nominal inside diameter is listed as 7 1/2 inch. 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.
Description -264 BLACK BUNA 70D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 7.484 inch (190.09 mm)
Actual Outside Diameter 7.762 inch (197.15 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable