APG stocks the H70MD470, 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). An o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, Buna-N (Nitrile) delivers an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists many alcohols, propane and butane, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in automotive brake fluid or ozone and direct sunlight.
This item is metal detectable for HACCP and foreign-body control programs. You will find this material specified across agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.
Stocked as H70MD470 and sold individually. Nominal inside diameter is listed as 21 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -470 BLACK BUNA 70D O-RING
uf_description2 METAL DETECTABLE, 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 - FDA / Metal Detectable