Value Collection BDNA--9978-1 O-ring Dash 108 Nbr

Product Description

The VALUE COLLECTION BDNA--9978-1 is a Dash 108 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a 70 durometer hardness rating. It features a 1/4 inch inside diameter, a 3/32 inch cross-section thickness, and a round cross-section profile. NBR compound provides reliable resistance to petroleum-based fluids, making this O-ring well suited for sealing applications in plumbing, HVAC, and general mechanical systems. Licensed plumbers, HVAC technicians, and mechanical service professionals install this type of seal during routine equipment maintenance and repair work.

This O-ring is used in low-pressure and medium-pressure sealing applications where petroleum-based fluid or gas compatibility is required. Typical install scenarios include valve stems, fittings, pump housings, and refrigeration or HVAC service ports where a Dash 108 standard-size seal is specified. It conforms to inch-measurement standards and is sized to match components calling for a 1/4 inch ID seal.

Key Features

• Dash 108 standard sizing: 1/4 inch inside diameter, 3/32 inch cross-section thickness
• Nitrile Butadiene Rubber (NBR) material offers good resistance to petroleum-based oils and fuels
• 70 durometer hardness provides a balance of flexibility and compression resistance
• Round cross-section profile for consistent seating in standard O-ring grooves
• Inch-measurement system for compatibility with standard US-dimensioned components

Compatibility

Designed as a standard Dash 108 O-ring replacement for valves, fittings, pump housings, and mechanical assemblies requiring a 1/4 inch ID NBR seal in inch-dimensioned systems.

Installation Notes

Shut off fluid or gas supply and relieve system pressure before removing the existing seal. Clean the groove and mating surfaces of debris or old seal material before installing the new O-ring. Lubricate the O-ring lightly with a compatible fluid or O-ring lubricant to ease installation and reduce the risk of tearing. Follow applicable plumbing or mechanical codes and verify pressure ratings of the surrounding components before returning the system to service.