Value Collection BDNA--9991-7 O-ring Dash 223 Nbr

Product Description

The VALUE COLLECTION BDNA--9991-7 is a standard inch-series O-ring used to create static or dynamic fluid seals in plumbing, HVAC, and mechanical systems. It measures 1.625 inches inside diameter with a 0.125 inch cross-section thickness and carries a Dash 223 designation per standard O-ring sizing charts. The ring is molded from Nitrile Butadiene Rubber (NBR) with a 70 Shore A durometer, making it well-suited for use with water, oils, fuels, and common hydraulic fluids. Plumbers, HVAC technicians, and mechanical service pros install this type of seal in valves, fittings, pumps, and manifolds.

This O-ring is appropriate for residential and light commercial applications where an inch-series Dash 223 NBR seal is required. Typical install scenarios include valve body rebuilds, pump seal replacement, and fitting connections in water and oil service. The NBR compound provides reliable performance across a broad temperature range and resists degradation from petroleum-based fluids commonly encountered in HVAC and plumbing service work.

Key Features

• Dash 223 designation confirms dimensional compatibility with standard inch-series O-ring grooves
• 1.625 inch inside diameter with 0.125 inch cross-section thickness
• 70 Shore A durometer NBR compound resists oils, water, and petroleum-based fluids
• Round cross-section profile for consistent groove seating and even compression
• Inch system of measurement for direct use in standard SAE and imperial groove specifications

Compatibility

Designed as a standard inch-series replacement O-ring for any application requiring a Dash 223 NBR seal in valves, fittings, pumps, or fluid handling equipment.

Installation Notes

Power down or depressurize the system before removing any seals or fittings. Inspect the groove for nicks, burrs, or corrosion before seating the new O-ring. Apply a compatible lubricant to the O-ring prior to installation to reduce the risk of tearing during assembly. Follow applicable industry standards and equipment manufacturer guidelines for groove tolerances and compression values.