Value Collection ZMSCS70029 Silicone O-ring Dash 029 25-pack

Product Description

The VALUE COLLECTION ZMSCS70029 is a silicone O-ring with a round cross section, sized to Dash 029 and rated for a wide service temperature range of -80 degrees F to 450 degrees F. It measures 1.5 inches inside diameter, 1.625 inches outside diameter, and 0.0625 inches thick. With a hardness rating of 70 Shore A, this O-ring provides a firm, reliable seal in static and light dynamic applications. It offers good resistance to dry heat, weather, and ozone, making it well suited for environments where temperature cycling or outdoor exposure is a concern. HVAC technicians, plumbers, and industrial service professionals install these rings as sealing elements in fittings, valves, and threaded connections.

This O-ring is appropriate for residential and light commercial HVAC systems, plumbing assemblies, pool and spa equipment, and general industrial fluid handling where silicone elastomer is compatible with the media. It is listed as compatible with oils, chemicals, and solvents, though oil resistance is noted as limited. Applications requiring consistent sealing across a broad temperature range are a primary use case. Each order ships as a package of 25 rings, allowing technicians to stock a supply for routine service calls.

Key Features

• Temperature range of -80 degrees F to 450 degrees F supports demanding thermal cycling environments
• Round cross section and Dash 029 sizing for straightforward groove-fit installation
• 70 Shore A hardness provides a firm seal in static and low-dynamic sealing applications
• Silicone compound offers good weather and ozone resistance for outdoor or exposed installations
• Compatible with oils, chemicals, and solvents — note limited oil resistance
• Packaged in quantities of 25 for efficient field and shop stocking

Compatibility

Designed as a standard Dash 029 O-ring replacement for fittings, valves, and fluid connections that specify a silicone elastomer seal in HVAC, plumbing, pool, and general industrial service.

Installation Notes

Installation should be performed by a qualified technician familiar with sealing component replacement in pressurized systems. Shut off and depressurize the system before removing any fitting or valve. Inspect the O-ring groove for damage, debris, or corrosion before seating the new ring. Avoid twisting the O-ring during installation; a light application of compatible lubricant helps seat the ring evenly and reduces the risk of installation damage.