7MM CS X 174.6MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 174.6 mm (6.874 in), a cross section of 7 mm (0.276 in), and an outside diameter of 188.6 mm (7.43 in), catalogued under part number H7X174.6. It creates a positive seal at flange, piston and rod interfaces without added hardware.

It resists propane and butane, petroleum-based oils, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ketones or polar solvents.

You will find this material specified across agricultural equipment, automotive, and general industrial maintenance.

Stocked as H7X174.6 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.