-261 BLACK BUNA 70D O-RING

Part number H70MD261 is an AS568-261 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 6.734 in (171.04 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.012 in (178.1 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to petroleum-based oils, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) delivers reliable performance in both static and dynamic service, low compression set under sustained load. Continuous operating temperature is published at -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 fluid power, agricultural equipment, and automotive.

Order part number H70MD261, sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application.