Value Collection BDNA--9984-5 O-ring Dash 127 Nbr

Product Description

The VALUE COLLECTION BDNA--9984-5 is a Dash 127 O-ring with a round cross section, manufactured from Nitrile Butadiene Rubber (NBR). It measures 1-7/16 inches inside diameter with a 3/32 inch thickness and carries a Shore A durometer rating of 70. NBR material provides reliable resistance to petroleum-based fluids, making this O-ring well suited for sealing applications in hydraulic, pneumatic, plumbing, and fluid-handling systems. Licensed plumbers, HVAC technicians, and mechanical contractors use this type of O-ring as a sealing component in fittings, valves, pumps, and manifolds where a standard inch-series Dash 127 cross section is required.

This O-ring is appropriate for use in residential and light commercial fluid-handling systems where NBR compound is compatible with the working fluid. Typical applications include valve stem seals, union connections, pump housings, and threaded fitting interfaces. Its round cross section seats consistently in standard Dash 127 grooves, supporting leak-free performance across common low-to-moderate pressure service conditions. Trade professionals specify this part by dash number and material to ensure dimensional and chemical compatibility with the system fluid.

Key Features

• Dash 127 inch-series O-ring with 1-7/16 inches inside diameter
• 3/32 inch cross-section thickness with round profile for consistent groove seating
• Nitrile Butadiene Rubber (NBR) compound rated at 70 Shore A durometer
• Suited for petroleum-based fluid, hydraulic, and pneumatic sealing environments
• Inch system of measurement — compatible with standard SAE Dash 127 groove specifications

Compatibility

Designed as an OEM-style replacement for standard Dash 127 O-ring applications in inch-dimensioned hydraulic, pneumatic, plumbing, and fluid-handling equipment where NBR material is specified.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified mechanic. Depressurize and isolate the system fully before removing the existing O-ring. Inspect the groove for nicks, burrs, or contamination before seating the replacement. Lightly lubricate the O-ring with a fluid compatible with NBR compound prior to installation to avoid tearing during assembly — do not use petroleum grease on NBR O-rings in applications where it is not the system fluid.