Ordered as N70471, this is an AS568-471 black Neoprene (Chloroprene) 70 Shore A O-Ring built to an inside diameter of 21.955 in (557.66 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 22.505 in (571.63 mm). The o-ring compresses into its gland to block fluid or gas migration across a joint.
Expect good resistance to moderate petroleum oil exposure, sunlight and salt spray, and ozone and weathering. That behavior comes from the compound itself: Neoprene (Chloroprene) is valued for a balanced combination of oil and weather resistance, inherent flame-retarding characteristics. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with chlorinated solvents or ketones.
You will find this material specified across transit and rail, HVAC and refrigeration, and weather sealing and enclosures.
Reference part number N70471 when ordering; the item is sold individually. Unit weight is approximately 98.45 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description -471 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.275" (6.99MM) CS X 21.955" (557.66MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 21.955 inch (557.66 mm)
Actual_OD 22.505 inch (571.63 mm)
ProductCode Description O-Rings - Bulk - Commodity