Value Collection ZBDMP9991-3 O-ring Dash 219 Nbr

Product Description

The VALUE COLLECTION ZBDMP9991-3 is a Dash 219 O-ring manufactured from Nitrile Butadiene Rubber (NBR) with a round cross section. It measures 1.31 inches inside diameter, 1.56 inches outside diameter, and 0.125 inches thick. NBR compound delivers reliable resistance to petroleum-based fluids, making this O-ring well suited for hydraulic, pneumatic, and fluid-handling sealing applications. The 70 Shore A hardness rating provides a firm, durable seal under compression. Rated for service from -40 degrees F to 275 degrees F, it handles a broad range of operating temperatures encountered in HVAC, plumbing, and industrial fluid systems.

This O-ring is used as a static or dynamic seal in fittings, valves, pumps, and fluid connectors where NBR material compatibility is required. Typical applications include refrigeration and HVAC service connections, plumbing shutoff valves, and general-purpose hydraulic fittings. The Dash 219 designation conforms to AS568 standard sizing, allowing straightforward cross-referencing to replacement and OEM seal specifications across multiple system types.

Key Features

• Dash 219 AS568 standard sizing for easy cross-referencing and replacement
• Nitrile Butadiene Rubber construction for petroleum-fluid and oil resistance
• 70 Shore A hardness rating — firm seal under compression loads
• Temperature range: -40 degrees F to 275 degrees F
• Round cross section for consistent seating in standard O-ring grooves
• Lightweight at 0.01 pounds per unit

Compatibility

Designed as a standard Dash 219 NBR O-ring replacement for use in AS568-dimensioned grooves across HVAC, plumbing, hydraulic, and pneumatic fittings and valve assemblies where nitrile rubber material compatibility is appropriate.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or fluid system technicians. Depressurize and drain the system fully before removing the old seal and installing the replacement O-ring. Lubricate the O-ring with a compatible fluid or O-ring lubricant rated for NBR material before seating to prevent tearing during installation. Verify groove dimensions match Dash 219 specifications before installation to ensure proper compression and sealing.