Value Collection ZMSCQH70211 O-ring Dash 211 Nbr

Product Description

The VALUE COLLECTION ZMSCQH70211 is a Dash 211 X-profile o-ring manufactured from Nitrile Butadiene Rubber (NBR). It features a 13/16 inch inner diameter, a 1.063 inch outer diameter, and a 1/8 inch cross-section thickness. The quattro or X-shaped cross section provides four sealing points instead of the two offered by a standard round cross section, improving resistance to spiral twist and blow-out under dynamic conditions. NBR material delivers reliable performance in petroleum-based fluid, hydraulic oil, water, and fuel applications. Licensed plumbers, HVAC technicians, and industrial maintenance technicians working on fluid-handling assemblies routinely use this style of seal.

This o-ring is suited for static and dynamic sealing applications across plumbing, hydraulic, pneumatic, and HVAC systems where NBR compound compatibility is appropriate. The Dash 211 sizing is a standard AS568 dimension, making it a direct fit for ports, grooves, and fittings machined to that specification. It is commonly installed in valve bodies, pump housings, cylinder caps, and pipe fittings in both residential and light commercial service environments. Individual rings are sold in a package quantity of 100 units.

Key Features

• X-profile quattro cross section reduces spiral twist during dynamic service
• Nitrile Butadiene Rubber (NBR) compound compatible with petroleum oils, hydraulic fluids, water, and fuel
• Dash 211 size conforms to standard AS568 o-ring dimensioning
• 13/16 inch inner diameter and 1.063 inch outer diameter for precise groove fit
• 1/8 inch cross-section thickness for consistent radial squeeze and sealing force
• Packaged in quantities of 100 for shop stock and service truck inventory

Compatibility

Designed as a standard Dash 211 replacement o-ring for any valve, fitting, pump, or housing machined to AS568 Dash 211 groove dimensions where an NBR-compatible X-profile seal is specified.

Installation Notes

Depressurize and isolate the system before removing the old seal, and verify the groove is clean and free of nicks or burrs that could damage the new ring. Apply a thin film of system-compatible lubricant to the o-ring before installation to reduce the risk of pinching or tearing during assembly. Do not stretch the ring excessively when seating it; confirm it lies flat in the groove without twisting. Inspect the mating surfaces for corrosion or scoring that could cause a leak path after reassembly.