Value Collection BDNA--9994-1 O-ring Dash 326 Nbr

Product Description

The VALUE COLLECTION BDNA--9994-1 is a Dash 326 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 1-5/8 inches inside diameter with a 3/16 inch thickness and carries a 70 durometer hardness rating. NBR compound provides solid resistance to petroleum-based oils, fuels, and common hydraulic fluids, making this O-ring a reliable sealing element in fluid-handling systems. HVAC technicians, plumbers, and industrial mechanics use this size for sealing fittings, valves, and fluid system components where a standard inch-series O-ring is specified.

The Dash 326 designation is a standard AS568 inch-series size used across residential and commercial applications including refrigeration service valves, plumbing shut-off assemblies, hydraulic fittings, and general fluid system connections. The NBR material is well-suited for systems handling mineral oil, water, and most petroleum-based refrigeration oils. This O-ring is sold individually per package, with a minimum order quantity of 25 units.

Key Features

• Standard Dash 326 AS568 inch-series sizing for broad fitment across valves and fittings
• Nitrile Butadiene Rubber (NBR) construction resists petroleum-based oils, fuels, and hydraulic fluids
• 70 durometer hardness provides a firm yet compressible seal under standard system pressures
• Round cross section for consistent compression and sealing contact
• Inch-system dimensions: 1-5/8 inches ID, 3/16 inches thick

Compatibility

Designed as a standard inch-series replacement O-ring for valves, fittings, and fluid system components requiring a Dash 326 NBR seal.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or qualified mechanics. Always depressurize and drain the system before replacing any O-ring in a fluid or refrigerant circuit. Lightly lubricate the O-ring with a compatible fluid or O-ring lubricant before seating to prevent tearing during assembly. Verify that the replacement O-ring material is compatible with the system fluid before installation.