Value Collection BDNA--9988-1 O-ring Dash 120 Nbr 1 in Id

Product Description

The VALUE COLLECTION BDNA--9988-1 is a Dash 120 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 1 inch inside diameter with a 3/32 inch cross-sectional thickness and carries a Shore A durometer rating of 70, indicating a medium-firm compound suited for dynamic and static sealing applications. NBR material provides reliable resistance to petroleum-based fluids, hydraulic oils, and fuels, making this O-ring a standard choice across plumbing, hydraulic, and fluid-system assemblies. Licensed plumbers, HVAC technicians, and industrial maintenance trades use this type of seal in fittings, valve bodies, pump housings, and manifold connections.

This O-ring is sized to the Dash 120 standard in the inch measurement system, fitting assemblies that call out a 1.000 inch inside diameter and 3/32 inch cross section. Typical applications include static groove seals in threaded fittings, face seals in hydraulic and pneumatic components, and replacement seals in residential and light commercial plumbing and HVAC equipment. The NBR compound performs across a broad range of temperatures and maintains its profile under compression in both stationary and low-speed dynamic service conditions.

Key Features

• Dash 120 standard sizing: 1 inch inside diameter, 3/32 inch cross-sectional thickness
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based oils, hydraulic fluid, and fuels
• Shore A 70 durometer provides a balance of flexibility and compression resistance
• Round cross section for consistent seating in standard O-ring grooves
• Inch measurement system — compatible with Dash 120 groove specifications

Compatibility

Designed as a standard Dash 120 O-ring replacement for any assembly specifying a 1.000 inch inside diameter and 3/32 inch cross section in the inch measurement system.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Always depressurize and isolate the fluid circuit before replacing an O-ring seal. Lubricate the O-ring lightly with a compatible fluid or grease before seating to prevent tearing during assembly. Inspect the groove and mating surfaces for nicks or burrs that could compromise the seal.