Value Collection ZMSCQH70329 O-ring Dash 329 Nbr X Cross

Product Description

The VALUE COLLECTION ZMSCQH70329 is a Dash 329 O-ring with an X-profile (Quattro) cross section, manufactured from Nitrile Butadiene Rubber (NBR). It measures 2 inches inside diameter, 2.375 inches outside diameter, and 0.1875 inches thick. The X cross section provides four-point sealing contact, which reduces roll and spiral-out in dynamic applications compared to a standard round-section O-ring. NBR compound offers solid resistance to petroleum-based fluids, making this ring suitable for hydraulic, pneumatic, and fluid-handling assemblies. Plumbers, HVAC technicians, and industrial maintenance technicians commonly use Dash 329 O-rings as sealing elements in pipe fittings, valve bodies, and equipment flanges.

This O-ring is suited for static and dynamic sealing applications in residential and commercial systems where petroleum-based oil, fuel, or water is the working fluid. Typical installation points include pump housings, valve stems, union fittings, and threaded port plugs. The Dash 329 size is a standard AS568 designation, meaning it is a direct dimensional match for any AS568-329 gland. Sold in packages of 25, this SKU is appropriate for stocking service vans or shop inventory where multiple repairs of the same fitting size are anticipated.

Key Features

• X-profile (Quattro) cross section provides four-point contact sealing, reducing O-ring roll and spiral failure in dynamic grooves
• Nitrile Butadiene Rubber (NBR) compound resists petroleum-based hydraulic fluids, oils, and water
• Dash 329 designation conforms to AS568 standard dimensions for direct gland compatibility
• 2 inches inside diameter and 0.1875 inches cross-section thickness suit medium-bore fittings and valve ports
• Package quantity of 25 supports fleet stocking and multi-unit repair jobs

Compatibility

Designed as a standard AS568 Dash 329 replacement O-ring for any gland or groove dimensioned to accept a 2 inches ID by 2.375 inches OD by 0.1875 inches thick X-profile seal in NBR material.

Installation Notes

Power down or depressurize the system completely before removing any fitting or valve that retains this O-ring. Clean the gland groove of debris, old compound, and corrosion before seating the new ring. Apply a thin film of compatible lubricant to the O-ring and groove to prevent tearing during assembly. Verify the gland dimensions match the Dash 329 specification before installation to avoid under- or over-compression of the seal.