H70MD164 is an AS568-164 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 6.237 in (158.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.443 in (163.65 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.
This material stands up to water, hydraulic fluids, and greases and lubricants. Buna-N (Nitrile) delivers strong abrasion and tear resistance, reliable performance in both static and dynamic service. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or polar solvents are present.
The compound is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across general industrial maintenance, fluid power, and agricultural equipment.
Order part number H70MD164, sold individually. Review your operating media and conditions against this specification before installation.
Description -164 BLACK BUNA 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 6.237 inch (158.42 mm)
Actual Outside Diameter 6.443 inch (163.65 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable