Ordered as H70470, this is an AS568-470 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 20.955 in (532.26 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 21.505 in (546.23 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
As a material, Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. This material stands up to propane and butane, petroleum-based oils, and greases and lubricants. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in general industrial maintenance, agricultural equipment, and fluid power.
This item is sold individually under part number H70470. Unit weight is approximately 79.7 g and nominal inside diameter is listed as 21 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -470 BLACK BUNA 70D O-RING
uf_description2 0.275" (6.99MM) CS X 20.955" (532.26MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 20.955 inch (532.26 mm)
Actual_OD 21.505 inch (546.23 mm)
ProductCode Description O-Rings - Bulk - Commodity