Value Collection BDNA-9986 O-ring Dash 211 Nbr 13/16 in Id

Product Description

The Value Collection BDNA-9986 is a Dash 211 O-ring used to create fluid-tight seals in hydraulic, pneumatic, plumbing, and HVAC systems. It features a 13/16 inch inside diameter and a 1/8 inch cross-section thickness with a round cross-section profile. Constructed from Nitrile Butadiene Rubber (NBR), this O-ring offers reliable resistance to petroleum-based oils, fuels, and common hydraulic fluids. It is sized to inch-system standards and is a direct fit for applications calling out a Dash 211 O-ring in NBR material. Plumbers, HVAC technicians, and hydraulic equipment service professionals regularly use this part in valve bodies, pump housings, fittings, and fluid connectors.

This O-ring is suited for residential and light commercial service applications where an inch-standard Dash 211 NBR seal is required. Common install scenarios include valve stem seals, fitting connections, and pump shaft seals in water, refrigerant, and oil-service lines. NBR compound makes it appropriate for use with petroleum-based and water-based media within the material's rated temperature range. Minimum order quantity is 25 pieces; each package contains 1 piece.

Key Features

• Dash 211 inch-standard sizing for straightforward cross-reference and replacement
• 13/16 inch inside diameter and 1/8 inch section thickness
• Round cross-section profile for consistent groove seating and even compression
• Nitrile Butadiene Rubber (NBR) construction resists petroleum oils, hydraulic fluids, and water-based media
• Inch measurement system for compatibility with standard SAE and inch-dimensioned hardware

Compatibility

Designed as a direct replacement for any application specifying a Dash 211 O-ring in Nitrile Butadiene Rubber with inch-standard dimensions. Verify groove dimensions against the 13/16 inch ID and 1/8 inch cross-section before installation.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or hydraulic service professional. Depressurize and isolate the system fully before removing the old seal or installing a new one. Lightly lubricate the O-ring with a compatible fluid or grease before seating it to prevent tearing during assembly. Do not over-stretch the O-ring during installation, as this can reduce sealing effectiveness and shorten service life.