The H70MD165 is an AS568-165 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 6.487 in (164.77 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 6.693 in (170 mm). This o-ring remains the most cost-effective sealing element available for pressurized assemblies.
The material holds up against many alcohols, greases and lubricants, and propane and butane. Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or polar solvents.
This o-ring is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, automotive, and general industrial maintenance.
This item is sold individually under part number H70MD165. Nominal inside diameter is listed as 6 1/2 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -165 BLACK BUNA 70D O-RING
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 6.487 inch (164.77 mm)
Actual Outside Diameter 6.693 inch (170 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable