5.7MM CS X 164.3MM ID BLACK BUNA 90D

Part number H90M5.7X164.3 is a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 164.3 mm (6.469 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 175.7 mm (6.92 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. This item is further identified as Metric O-RING, JIS G165.

As a material, Buna-N (Nitrile) delivers low compression set under sustained load and an economical choice for high-volume maintenance programs. Expect good resistance to hydraulic fluids, greases and lubricants, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ketones.

Maintenance and OEM teams specify it across general industrial maintenance, automotive, and fluid power.

Stocked as H90M5.7X164.3 and sold individually. 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.