Value Collection BDNA-9993 O-ring Dash 227 Nbr 2.125 in Id

Product Description

The VALUE COLLECTION BDNA-9993 is a Dash 227 O-ring used to create static or dynamic fluid seals in plumbing, HVAC, and general mechanical assemblies. Molded from Nitrile Butadiene Rubber (NBR), it offers reliable resistance to petroleum-based fluids, hydraulic oils, and water. The inside diameter measures 2.125 inches with a cross-sectional thickness of 0.125 inches and a round cross-section profile. This O-ring is sized to the industry-standard Dash 227 designation, making it straightforward to specify and replace in the field. Licensed plumbers, HVAC technicians, and industrial mechanics commonly install this type of seal during pump rebuilds, valve service, and fitting connections.

This O-ring is suited for residential and light commercial plumbing and HVAC applications where a 2.125-inch ID, Dash 227 seal is required. Typical install scenarios include pump housings, service valves, flanged connections, and threaded port fittings that call for an NBR compound. NBR material is appropriate for systems handling water, oils, fuels, and refrigerant service connections where moderate temperature ranges are expected. It is sold individually with a minimum order quantity of 25 units.

Key Features

• Dash 227 standard sizing for straightforward cross-reference and replacement
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based fluids, oils, and water
• Round cross-section profile for consistent seating in standard O-ring grooves
• 2.125-inch inside diameter with 0.125-inch thickness
• Inch system of measurement for compatibility with standard SAE groove specifications

Compatibility

Designed as a standard Dash 227 replacement O-ring for use in any application requiring a 2.125-inch ID, 0.125-inch cross-section NBR seal in inch-dimensioned grooves.

Installation Notes

Depressurize and drain the system fully before removing the old O-ring. Inspect the groove for nicks, corrosion, or debris that could compromise the seal. Apply a light coat of compatible lubricant to the O-ring before seating to prevent tearing during installation. Do not stretch or twist the O-ring into place; roll it into the groove evenly.