APG stocks the H70MD401, an AS568-401 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 1.475 in (37.47 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.025 in (51.44 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Expect good resistance to water, petroleum-based oils, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.
The compound is metal detectable for HACCP and foreign-body control programs. Typical settings include automotive, general industrial maintenance, and hydraulic and pneumatic systems.
Stocked as H70MD401 and sold individually. Nominal inside diameter is listed as 1 1/2 inch. 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.
Description -401 BLACK BUNA 70D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 1.475 inch (37.47 mm)
Actual Outside Diameter 2.025 inch (51.44 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable