Ordered as H70335, this is an AS568-335 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 2.725 in (69.22 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 3.145 in (79.88 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
This material stands up to hydraulic fluids, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer and an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ketones call for a different compound.
You will find this material specified across construction equipment, automotive, and general industrial maintenance.
Stocked as H70335 and sold individually. Unit weight is approximately 0.0064 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -335 BLACK BUNA 70D O-RING
uf_description2 0.210" (5.33MM) CS X 2.725" (69.22MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 2.725 inch (69.22 mm)
Actual_OD 3.145 inch (79.88 mm)
ProductCode Description O-Rings - Bulk - Commodity