-415 BLACK BUNA 70D O-RING

The H70MD415 is an AS568-415 black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 3.225 in (81.92 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 3.775 in (95.89 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to many alcohols, petroleum-based oils, and greases and lubricants. That behavior comes from the compound itself: Buna-N (Nitrile) is known for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across fluid power, general industrial maintenance, and hydraulic and pneumatic systems.

H70MD415 ships individually. Nominal inside diameter is listed as 3 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.