-428 BLACK CHLOROPRENE 70D O-RING

This o-ring is supplied in AS568-428 black Neoprene (Chloroprene) 70 Shore A supplied with an inside diameter of 4.85 in (123.19 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 5.4 in (137.16 mm), catalogued under part number N70428. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Neoprene (Chloroprene) is specified here for balanced combination of oil and weather resistance, strong performance in refrigeration circuits. It resists mild acids, refrigerants and ammonia, and ozone and weathering. 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 strong oxidizing acids or aromatic hydrocarbons.

Maintenance and OEM teams specify it across general industrial, marine equipment, and transit and rail.

N70428 ships individually. Unit weight is approximately 21.995 g and nominal inside diameter is listed as 4 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.