Value Collection ZBD9994-11 O-ring Dash 336 Nbr

Product Description

The VALUE COLLECTION ZBD9994-11 is a Dash 336 O-ring used to create static or dynamic fluid seals in hydraulic, pneumatic, plumbing, and HVAC service applications. It features a round cross-section profile measuring 2.88 inches inside diameter, 3.25 inches outside diameter, and 0.1875 inches thick. Constructed from Nitrile Butadiene Rubber (NBR) with a Shore A hardness of 70, it resists petroleum-based oils, fuels, and hydraulic fluids across a service temperature range of -40 degrees F to 275 degrees F. Licensed tradespeople and service technicians reach for NBR O-rings when sealing oil-wetted or water-service connections in mechanical systems.

This O-ring is suited for residential and light commercial applications where a Dash 336 cross-section is specified. Common install scenarios include pump housings, valve bonnets, pipe unions, refrigerant service ports, and hydraulic fittings that require a reliable face or radial seal. The 70 durometer hardness provides resistance to extrusion under moderate system pressures. Its NBR compound makes it a practical choice for petroleum fluid circuits and general-purpose water service lines.

Key Features

• Dash 336 standard sizing: 2.88 inches ID x 3.25 inches OD x 0.1875 inches thick
• Nitrile Butadiene Rubber (NBR) compound resists petroleum oils, hydraulic fluids, and water
• Shore A hardness rating of 70 for reliable sealing under moderate pressure
• Operating temperature range of -40 degrees F to 275 degrees F
• Round cross-section profile for consistent groove fit and sealing contact

Compatibility

Designed as a standard Dash 336 O-ring replacement for applications specifying NBR material and a round cross-section in hydraulic, pneumatic, plumbing, and HVAC service assemblies.

Installation Notes

Installation is typically performed by licensed plumbers, HVAC technicians, or hydraulic system technicians. Always depressurize and de-energize the system and drain any residual fluid before removing the old O-ring. Lightly lubricate the O-ring with a compatible fluid or grease before seating it in the groove to prevent tearing during assembly. Do not overstretch or twist the O-ring during installation, as deformation will compromise the seal.