Value Collection BDNA--9993-2 O-ring Dash 229 Nbr

Product Description

The VALUE COLLECTION BDNA--9993-2 is a Dash 229 O-ring used to create reliable fluid and gas seals in a wide range of mechanical assemblies. It features a 2-3/8 inch inside diameter and a 1/8 inch round cross section, and is manufactured from Nitrile Butadiene Rubber (Buna-N). Buna-N compound provides solid resistance to petroleum-based fluids, hydraulic oils, and common refrigerants, making this O-ring a practical choice in HVAC, plumbing, and general mechanical service work. Plumbers, HVAC technicians, and maintenance professionals stock these for routine sealing repairs on valves, fittings, and equipment ports.

This O-ring is suited for residential and light commercial service applications where a Dash 229 size replacement is required. Typical uses include sealing valve stems, pump housings, refrigerant service ports, and threaded fittings that call for a 2-3/8 inch ID round-cross-section O-ring. Its Buna-N construction handles contact with water, oil, and many common refrigerants without significant swelling or degradation, which suits it well to HVAC and plumbing environments.

Key Features

• Dash 229 standard sizing for straightforward cross-reference and replacement
• 2-3/8 inch inside diameter with a 1/8 inch round cross section
• Nitrile Butadiene Rubber (Buna-N) material resists petroleum-based fluids and hydraulic oils
• Round cross section provides consistent sealing contact against mating surfaces
• Lightweight construction at 0.01 pounds per piece

Compatibility

Designed as an OEM-style replacement O-ring for any application requiring a Dash 229 standard O-ring with a 2-3/8 inch inside diameter and 1/8 inch cross section thickness in Buna-N material.

Installation Notes

O-ring installation should be performed by a qualified technician following appropriate shutdown and depressurization of the system before removing any fittings or valve components. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent tearing during assembly. Inspect the seating groove for damage, burrs, or debris before installing the new O-ring. Ensure the O-ring is fully seated and not twisted in the groove prior to reassembly.