Ordered as N70444, this is an AS568-444 black Neoprene (Chloroprene) 70 Shore A O-Ring built to an inside diameter of 7.725 in (196.22 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.275 in (210.19 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.
Neoprene (Chloroprene) is specified here for dependable general-purpose sealing in exposed installations and good resilience across a moderate temperature band. This material stands up to sunlight and salt spray, ozone and weathering, and refrigerants and ammonia. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in ketones or aromatic hydrocarbons.
Maintenance and OEM teams specify it across transit and rail, HVAC and refrigeration, and weather sealing and enclosures.
Order part number N70444, sold individually. Unit weight is approximately 34.158 g and nominal inside diameter is listed as 7 3/4 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 -444 BLACK CHLOROPRENE 70D O-RING
uf_description2 0.275" (6.99MM) CS X 7.725" (196.21MM) ID
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 7.725 inch (196.22 mm)
Actual_OD 8.275 inch (210.19 mm)
ProductCode Description O-Rings - Bulk - Commodity