Ordered as N70349, this is an AS568-349 black Neoprene (Chloroprene) 70 Shore A O-Ring built to an inside diameter of 4.475 in (113.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.895 in (124.33 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Expect good resistance to refrigerants and ammonia, ozone and weathering, and mild acids. Neoprene (Chloroprene) delivers a balanced combination of oil and weather resistance, strong performance in refrigeration circuits. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving aromatic hydrocarbons or chlorinated solvents call for a different compound.
Typical settings include general industrial, weather sealing and enclosures, and HVAC and refrigeration.
N70349 ships individually. Unit weight is approximately 11.616 g and nominal inside diameter is listed as 4 1/2 inch. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -349 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.210" (5.33MM) CS X 4.475" (113.67MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 4.475 inch (113.67 mm)
Actual_OD 4.895 inch (124.33 mm)
ProductCode Description O-Rings - Bulk - Commodity