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The VALUE COLLECTION BD-C560300 is a Dash 201 O-ring made from Nitrile Butadiene Rubber (NBR), also known as Buna-N, a synthetic elastomer widely used in fluid-sealing applications. This O-ring measures 0.188 inches inside diameter, 0.438 inches outside diameter, and 1/8 inch cross-section thickness with a round cross-section profile. It is rated for service from -40 degrees F to 250 degrees F, making it suitable for use with petroleum-based oils, hydraulic fluids, fuels, and water in HVAC, plumbing, and general mechanical applications. Each package contains 25 pieces.
Dash 201 NBR O-rings are commonly installed in valve bodies, fittings, pump housings, and fluid connectors across residential and light commercial HVAC systems, plumbing assemblies, and hydraulic equipment. They provide reliable static and dynamic sealing where petroleum-based fluids or water are present. Licensed plumbers, HVAC technicians, and industrial maintenance professionals routinely use this size in service and repair work on pumps, valves, and threaded connections.
Designed as a standard Dash 201 O-ring replacement for use in valve bodies, pump seals, fittings, and fluid connectors requiring a 0.188-inch ID NBR seal rated for petroleum and water service.
Installation is performed by licensed plumbers, HVAC technicians, or qualified mechanical trades. Depressurize and drain the system before removing or replacing any O-ring seals. Inspect the sealing groove for nicks, corrosion, or debris before installing the new O-ring. Lightly lubricate the O-ring with a compatible lubricant prior to seating to prevent tearing during assembly; do not use petroleum-based grease on O-rings not rated for that exposure.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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