Value Collection BDNA--9993-3 O-ring Dash 230 Nbr 2.5in Id

Product Description

The VALUE COLLECTION BDNA--9993-3 is a Dash 230 O-ring manufactured from Nitrile Butadiene Rubber (NBR), also known as Buna-N. It features a 2.5-inch inside diameter and a 0.125-inch cross-section thickness with a round cross-section profile. NBR material provides reliable resistance to oils, fuels, and many hydraulic fluids, making this O-ring a practical sealing choice for fluid-system connections across HVAC, plumbing, and general mechanical applications. Licensed tradespeople and maintenance technicians install this type of sealing component during equipment service and repair.

This O-ring is suited for use in residential and light commercial applications where a Dash 230 standard-size seal is required. Typical install scenarios include pump connections, valve bodies, refrigeration fittings, and hydraulic or pneumatic system joints that operate in environments where petroleum-based fluid exposure is expected. The Buna-N compound performs across a broad service temperature range, making it appropriate for both indoor and outdoor mechanical assemblies.

Key Features

• Dash 230 standard sizing for straightforward cross-reference and replacement sourcing
• 2.5-inch inside diameter fits standard groove and boss configurations for this dash number
• 0.125-inch round cross-section provides consistent sealing compression
• Buna-N (NBR) material resists petroleum oils, hydraulic fluids, and fuels
• Round cross-section profile ensures even load distribution in standard O-ring grooves

Compatibility

Designed as a standard Dash 230 O-ring replacement suitable for any application requiring a 2.5-inch ID, 0.125-inch thick NBR seal conforming to standard O-ring groove specifications.

Installation Notes

O-rings of this type are typically installed by HVAC technicians, plumbers, or mechanical service technicians during equipment teardown and reassembly. Always depressurize and de-energize the system before replacing seals, and relieve any fluid pressure at the service point before disassembly. Lightly lubricating the O-ring with a compatible grease or fluid can ease installation and reduce the risk of tearing during seating. Inspect the mating groove for wear, burrs, or corrosion before installing a new seal.