-045 BLACK BUNA 70D O-RING

Part number H70045 is an AS568-045 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 3.989 in (101.32 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.129 in (104.88 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to greases and lubricants, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or strong acids call for a different compound.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and automotive.

Order part number H70045, sold individually. Unit weight is approximately 1.0208 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.