Value Collection ZBD9984-25 O-ring Dash 149 Nbr 70 Duro

Product Description

The VALUE COLLECTION ZBD9984-25 is a Dash 149 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 2.81 inches inside diameter, 3 inches outside diameter, and 0.094 inches thick. The durometer rating is 70, placing it in the hard hardness range. Rated for service from -40 degrees F to 275 degrees F, this O-ring handles the temperature swings common in HVAC, plumbing, and fluid-handling applications. Plumbers, HVAC technicians, and maintenance mechanics install NBR O-rings when sealing oil, fuel, water, or refrigerant circuits where moderate-to-high temperatures and petroleum-based fluids are present.

This O-ring fits applications requiring a standard Dash 149 cross-section profile. NBR compound is widely used in hydraulic fittings, pump housings, valve stems, compressor ports, and fluid-line couplings found in residential and light commercial mechanical systems. The -40 degrees F lower limit makes it suitable for outdoor or cold-weather installs. The 275 degrees F upper limit covers most hot-water and low-pressure steam sealing environments encountered in trade service work. Sold individually; minimum order quantity is 25 units.

Key Features

• Dash 149 standard sizing: 2.81 inches ID, 3 inches OD, 0.094 inches cross-section thickness
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based oils, fuels, and water
• 70 durometer (hard) rating provides firm sealing under compression
• Operating range of -40 degrees F to 275 degrees F suits a wide range of mechanical systems
• Round cross-section profile fits standard O-ring grooves without modification

Compatibility

Designed as a standard Dash 149 O-ring replacement for any groove or fitting that accepts a 2.81-inch ID NBR O-ring with a round cross section.

Installation Notes

Plumbers, HVAC technicians, and mechanical maintenance professionals install this O-ring type. Depressurize and drain the system fully before removing the old seal. Inspect the mating groove for nicks, burrs, or corrosion that could cause the new O-ring to fail prematurely. Lightly lubricate the O-ring with a compatible grease before seating to prevent tearing during assembly.