Ordered as H70FDA326, this is an AS568-326 white Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.6 in (40.64 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.02 in (51.31 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
It resists propane and butane, hydraulic fluids, and greases and lubricants. Buna-N (Nitrile) is valued for low compression set under sustained load and an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Applications involving ketones or automotive brake fluid call for a different compound.
The compound meets FDA requirements for food contact, is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include agricultural equipment, construction equipment, and hydraulic and pneumatic systems.
Reference part number H70FDA326 when ordering; the item is sold individually. Unit weight is approximately 4.142 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
description -326 WHITE BUNA 70D FDA O-RING
uf_description2 COMPLIANT TO 21CFR SEC 177-2600, 0.210" (5.33MM) CS X 1.600" (40.64MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 1.6 inch (40.64 mm)
Actual_OD 2.02 inch (51.31 mm)
ProductCode Description O-Rings - FDA / Metal Detectable