APG stocks the H70317, an AS568-317 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 0.912 in (23.16 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.332 in (33.83 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.
This material stands up to petroleum-based oils, greases and lubricants, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
You will find this material specified across agricultural equipment, fluid power, and general industrial maintenance.
This item is sold individually under part number H70317. Unit weight is approximately 2.439 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.
description -317 BLACK BUNA 70D O-RING
uf_description2 0.210" (5.33MM) CS X 0.912" (23.16MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 0.912 inch (23.16 mm)
Actual_OD 1.332 inch (33.83 mm)
ProductCode Description O-Rings - Bulk - Commodity