Ordered as H70MD041, this is an AS568-041 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 2.989 in (75.92 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 3.129 in (79.48 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. Expect good resistance to petroleum-based oils, water, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include automotive, fluid power, and general industrial maintenance.
This item is sold individually under part number H70MD041. Nominal inside diameter is listed as 3 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Description -041 BLACK BUNA 70D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 2.989 inch (75.92 mm)
Actual Outside Diameter 3.129 inch (79.48 mm)
Measurement System Imperial
Product Category O-Rings - FDA / Metal Detectable