Value Collection BDNA--9977-5 O-ring Dash 020 Nbr

Product Description

The VALUE COLLECTION BDNA--9977-5 is a Dash 020 O-ring sealing element manufactured from Nitrile Butadiene Rubber (Buna-N) with a round cross section. It measures 7/8 inch inside diameter and 1/16 inch in thickness. Buna-N compound provides reliable resistance to petroleum-based fluids, making this O-ring well suited for use in hydraulic, pneumatic, plumbing, and HVAC refrigerant-side applications. Licensed plumbers, HVAC technicians, and mechanical contractors regularly stock Dash 020 O-rings for valve stem seals, fittings, and pump assemblies where a standard-sized elastomeric seal is required.

This O-ring is appropriate for residential and light commercial service work involving fluid or gas containment at connections and port seals. It fits standard Dash 020 groove dimensions per AS568 sizing conventions. Typical applications include faucet cartridge rebuilds, refrigerant service valves, hydraulic fittings, and general-purpose pipe joint sealing where a Buna-N elastomer is compatible with the media being sealed.

Key Features

• Dash 020 standard sizing for drop-in replacement in AS568-dimensioned grooves
• 7/8 inch inside diameter with 1/16 inch cross-section thickness
• Buna-N (Nitrile Butadiene Rubber) construction for petroleum and water resistance
• Round cross section for uniform compression and consistent seal integrity
• Lightweight at 0.01 pounds per unit, convenient for field stocking

Compatibility

Designed as a standard Dash 020 O-ring replacement suitable for any application requiring an AS568-dimensioned seal in Buna-N material compatible with petroleum-based or water-based media.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with the system being serviced. Isolate and depressurize the system completely before removing the existing seal. Inspect the groove for burrs or damage that could compromise the new O-ring, and apply a compatible lubricant to seat the ring without twisting or rolling it into position. Do not install where system media is incompatible with Nitrile Butadiene Rubber.