Value Collection BDNA--9985-2 O-ring Dash 118 Nbr

Product Description

The VALUE COLLECTION BDNA--9985-2 is a Dash 118 O-ring used to create a fluid-tight seal in hydraulic, pneumatic, plumbing, and HVAC service applications. It measures 7/8 inch inside diameter with a 3/32 inch cross-section thickness and a round cross-section profile. Molded from Nitrile Butadiene Rubber (NBR) with a durometer rating of 70, it offers reliable resistance to oils, fuels, and water-based fluids. Licensed plumbers, HVAC technicians, and mechanical service pros reach for this size when servicing valves, pumps, fittings, and refrigerant-side components that require a standard inch-series O-ring replacement.

This O-ring fits applications calling for a Dash 118 inch-system O-ring. It is suited for residential and light commercial plumbing, HVAC equipment, pool and spa equipment, and general mechanical assemblies where an NBR seal of this cross-section is specified. NBR compound performs well in contact with petroleum-based oils, hydraulic fluid, and water, making it a common choice across multiple trade disciplines. It is sold individually but carries a minimum order quantity of 50 units, making it appropriate for shop stock or service van inventory.

Key Features

• Dash 118 designation — standard inch-series sizing for cross-trade compatibility
• 7/8 inch inside diameter with 3/32 inch round cross section
• Nitrile Butadiene Rubber (NBR) material resists oils, fuels, and water-based fluids
• 70 durometer hardness provides a firm, reliable seal under compression
• Round cross-section profile seats cleanly in standard O-ring grooves

Compatibility

Designed as an OEM-style replacement O-ring for any application requiring a Dash 118 inch-series NBR O-ring with a 7/8 inch inside diameter and 3/32 inch cross-section thickness.

Installation Notes

Power down or depressurize the system fully before replacing any O-ring in a pressurized line or component. Inspect the mating groove and sealing surfaces for nicks, corrosion, or debris before seating the new O-ring. A light coat of compatible lubricant appropriate to the fluid service can aid installation and reduce the risk of rolling or twisting during assembly. Follow applicable plumbing or mechanical codes — IPC and IFGC reference approved materials and pressure ratings for sealed connections in their respective systems.