Value Collection ZMSCS70326 Silicone O-ring Dash 326 25pk

Product Description

The VALUE COLLECTION ZMSCS70326 is a Dash 326 silicone O-ring used to create static or dynamic seals in fluid and pneumatic systems. Molded from silicone with a round cross section, it measures 1.625 inches inside diameter, 2.0 inches outside diameter, and 0.1875 inches thick. With a Shore hardness rating of 70 and a working temperature range of -80 degrees F to 450 degrees F, this ring is suited for applications that demand wide thermal range performance and good dry heat resistance. Licensed plumbers, HVAC technicians, and industrial maintenance trades install this O-ring as a sealing component in valves, fittings, pumps, and piping assemblies. Each package contains 25 rings.

This O-ring is appropriate for residential and commercial applications where the sealing element must tolerate exposure to weather, ozone, and moderate chemical contact. It performs well in dry-heat environments and offers good resistance to many oils, chemicals, and solvents, though oil resistance is noted as limited. Typical installation scenarios include valve stem seals, flange face seals, and port seals in HVAC equipment, plumbing assemblies, and light industrial piping. The white silicone material is visually distinct during installation, which aids in inspection and replacement verification.

Key Features

• Silicone material rated for -80 degrees F to 450 degrees F continuous service
• Shore hardness of 70 provides a firm, reliable seal under compression
• Round cross section for standard O-ring groove compatibility
• Good weather and ozone resistance for outdoor or exposed installations
• Compatible with oils, chemicals, and solvents; note limited oil resistance
• Sold in a pack of 25 for service-truck stocking and shop inventory

Compatibility

Designed as an OEM-style replacement or service-inventory silicone O-ring for standard Dash 326 groove dimensions in plumbing, HVAC, and light industrial assemblies.

Installation Notes

Installation should be performed by a licensed plumber, HVAC technician, or qualified maintenance professional. Depressurize and drain the affected system before removing the old O-ring to prevent injury from pressurized fluid or gas. Inspect the groove for damage or debris before seating the new ring, and avoid rolling or twisting the O-ring during installation to prevent spiral failure. Consult applicable codes such as IPC or IFGC when servicing sealed fluid systems.