Value Collection BDNA--9983-1 O-ring Dash 018 Nbr

Product Description

The VALUE COLLECTION BDNA--9983-1 is a Dash 018 O-ring with a 3/4 inch inside diameter and a 1/16 inch cross-section thickness. Molded from Nitrile Butadiene Rubber (NBR) with a 70 durometer hardness rating, this O-ring delivers reliable sealing performance in fluid and pneumatic systems. Its round cross-section profile seats consistently in standard O-ring grooves, providing a leak-resistant seal. HVAC technicians, plumbers, and maintenance professionals routinely use NBR O-rings as replacement seals in valves, fittings, pumps, and service ports across a wide range of trade applications.

This O-ring is suited for use in residential and light commercial plumbing, HVAC refrigerant and water circuits, and general mechanical assemblies where oil, fuel, or water resistance is required. NBR compounds perform well in petroleum-based fluid environments, making this an appropriate choice for service valves, pump housings, and threaded fitting connections. It is sized to the Dash 018 standard and follows the inch system of measurement.

Key Features

• Dash 018 standard sizing — 3/4 inch inside diameter, 1/16 inch cross-section thickness
• Nitrile Butadiene Rubber (NBR) construction resists petroleum-based fluids, water, and oils
• 70 durometer hardness provides a firm, consistent seal under moderate compression
• Round cross-section profile for consistent groove seating
• Inch-system dimensioned for compatibility with standard SAE O-ring grooves

Compatibility

Designed as a standard Dash 018 replacement O-ring for use in inch-dimensioned O-ring grooves across plumbing, HVAC, and general mechanical applications requiring an NBR sealing element.

Installation Notes

O-ring replacement is typically performed by licensed plumbers, HVAC technicians, or qualified maintenance mechanics. Always depressurize and de-energize the system before removing any sealing components. Lightly lubricating the O-ring with a compatible fluid or O-ring lubricant prior to installation helps prevent twisting and tearing during assembly. Inspect the groove for nicks or corrosion before seating the new ring.