Value Collection BDNA--9988-4 O-ring Dash 123 Nbr

Product Description

The VALUE COLLECTION BDNA--9988-4 is a Dash 123 nitrile butadiene rubber (NBR) O-ring with a round cross section, sized at 1-3/16 inches inside diameter and 3/32 inches thick. With a durometer rating of 70, this O-ring provides firm sealing performance suitable for dynamic and static applications involving hydraulic fluid, oil, water, and many common industrial fluids. It is installed by licensed plumbers, HVAC technicians, and fluid-system mechanics in a wide range of sealing applications across residential and commercial equipment.

This O-ring is suited for use in hydraulic systems, plumbing assemblies, pneumatic fittings, and mechanical seals where a standard Dash 123 inch-series O-ring is specified. Its NBR compound makes it a practical choice for petroleum-based fluid environments, low-pressure air lines, and water-service connections. The round cross section ensures consistent seating in standard O-ring grooves machined to Dash 123 dimensional specifications. Sold individually; minimum order quantity is 25 units.

Key Features

• Dash 123 inch-series O-ring — 1-3/16 inches inside diameter, 3/32 inches cross-section thickness
• Nitrile butadiene rubber (NBR) compound — resistant to petroleum oils, hydraulic fluids, and water
• 70 durometer hardness — firm, reliable seal in both static and dynamic groove applications
• Round cross section — fits standard Dash 123 O-ring grooves without modification
• Inch-system dimensioning — compatible with standard SAE and inch-series hardware

Compatibility

Designed as a standard Dash 123 inch-series O-ring replacement for any application requiring a 1-3/16 inches ID, 3/32 inches thick NBR O-ring in a round-cross-section groove.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified mechanics depending on the host system. Always depressurize and isolate the system before replacing an O-ring. Lubricate the O-ring with a compatible grease or fluid prior to seating to prevent tearing during assembly. Do not over-stretch the O-ring during installation, as this can reduce sealing effectiveness and shorten service life.