Value Collection ZMSCQH70019 O-ring Dash 019 Nbr 50-pack

Product Description

The VALUE COLLECTION ZMSCQH70019 is a Dash 019 O-ring with an X-profile (quattro) cross section, manufactured from Nitrile Butadiene Rubber (NBR). It measures 13/16 inches inner diameter, 15/16 inches outer diameter, and 1/16 inch thick. The X-cross section design provides four sealing lips rather than the single sealing surface of a standard round O-ring, improving resistance to spiral twist and blowout in dynamic and static sealing applications. NBR compound offers reliable resistance to petroleum-based oils, fuels, and hydraulic fluids, making this ring well suited for HVAC, plumbing, and fluid-handling equipment across the trade.

This O-ring is commonly used in static and low-dynamic sealing applications including refrigerant fittings, hydraulic connections, valve stems, pump housings, and fluid couplings. The Dash 019 sizing is a standard AS568 dimension used across residential and light commercial HVAC and plumbing assemblies. Packages contain 50 rings, supporting service calls and bench stock replenishment for shops that service high-turnover sealing points.

Key Features

• X-profile (quattro) cross section resists spiral twist and provides four contact sealing lips
• Nitrile Butadiene Rubber (NBR) compound compatible with petroleum oils, fuels, and hydraulic fluids
• Dash 019 AS568 standard sizing for broad fitment across trade equipment
• 0.0625 inch (1/16 inch) cross-section thickness confirmed to four decimal precision
• 0.9380 inch outside diameter per specification
• 50-piece pack supports bulk service stock

Compatibility

Designed as a standard Dash 019 replacement O-ring for static and low-dynamic sealing applications in HVAC, plumbing, and fluid-handling equipment that specify a 13/16 inch ID, 15/16 inch OD NBR seal.

Installation Notes

Installation is typically performed by licensed HVAC technicians, plumbers, or qualified mechanics during equipment service or repair. Always depressurize and isolate the system before removing or installing seals, and verify that residual fluid is purged from the port or fitting. Lightly lubricate the O-ring with a compatible fluid or assembly lubricant before seating to prevent pinching or tearing during installation. Inspect the seating groove for nicks or scoring that could compromise the seal before completing reassembly.