Value Collection ZBD9969 Nbr O-ring Round Cross Section

Product Description

The VALUE COLLECTION ZBD9969 is a nitrile butadiene rubber (NBR) O-ring with a round cross section, designed for static and dynamic sealing applications across plumbing, HVAC, and fluid-handling systems. NBR compound delivers reliable resistance to petroleum-based fluids, hydraulic oils, and water, making it a go-to sealing element for a wide range of service environments. The part carries a Shore A hardness rating of 70, placing it in the hard durometer range, which supports consistent sealing under moderate pressure. Rated for service from -40 degrees F to 275 degrees F, this O-ring maintains its seal integrity across typical residential and light commercial operating temperatures.

This O-ring suits applications in plumbing valve assemblies, pump housings, hydraulic fittings, refrigeration service ports, and general mechanical connections where a round-profile NBR seal is specified. It is sold individually and is appropriate for use wherever a standard NBR O-ring of this size class is required. Plumbers, HVAC technicians, and industrial maintenance professionals commonly stock NBR O-rings of this type as part of routine service kits for valve and fitting repairs.

Key Features

• Nitrile butadiene rubber (NBR) construction resists petroleum oils, hydraulic fluids, and water
• Round cross section for standard groove compatibility
• Shore A hardness of 70 for firm, reliable sealing under pressure
• Wide temperature range: -40 degrees F to 275 degrees F
• Lightweight at 0.01 pounds for easy handling and stocking

Compatibility

Designed as a replacement or service O-ring for plumbing, HVAC, and fluid-handling assemblies requiring a round cross section NBR seal. Verify groove dimensions and O-ring size against equipment specifications before installation.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or mechanical maintenance professional. Shut off fluid supply and depressurize the system completely before removing the old O-ring or installing the new one. Lubricate the O-ring with a compatible fluid or O-ring lubricant to prevent tearing during installation. Avoid stretching the O-ring beyond what is necessary to seat it in the groove, as overstretching can compromise the seal.