-421 BLACK CHLOROPRENE 70D O-RING

This o-ring is supplied in AS568-421 black Neoprene (Chloroprene) 70 Shore A with an inside diameter of 3.975 in (100.97 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.525 in (114.94 mm), catalogued under part number N70421. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Neoprene (Chloroprene) delivers good resilience across a moderate temperature band and strong performance in refrigeration circuits. This material stands up to refrigerants and ammonia, ozone and weathering, and mild acids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Verify compatibility before use with aromatic hydrocarbons or chlorinated solvents.

Common environments for this compound include transit and rail, HVAC and refrigeration, and weather sealing and enclosures.

Stocked as N70421 and sold individually. Nominal inside diameter is listed as 4 inch. Check the compound against your process media, pressure and temperature before committing to a design.