Value Collection ZMSCS70208 Silicone O-ring Dash 208 50 Pack

Product Description

The VALUE COLLECTION ZMSCS70208 is a round cross-section silicone O-ring sized at 0.625 inches inside diameter, 0.875 inches outside diameter, and 0.125 inches thick. Classified as Dash 208, this O-ring is molded from silicone with a Shore A hardness of 70, placing it in the hard hardness range. It is designed for static and dynamic sealing applications where wide temperature range performance and dry heat resistance are required. HVAC technicians, plumbers, and industrial maintenance professionals install this O-ring in equipment subject to temperature extremes, ozone exposure, and incidental contact with chemicals and solvents.

This O-ring suits residential and commercial applications where service temperatures range from -80 degrees F to 450 degrees F. It performs well in environments with weather and ozone exposure and offers limited oil resistance. Typical install scenarios include sealing fittings, valves, and flanged connections in HVAC systems, plumbing assemblies, and general mechanical equipment. The white silicone construction is compatible with oils, chemicals, and solvents in low-concentration contact situations. Each package contains 50 O-rings, making it practical for service technicians stocking repair kits or completing multi-point sealing jobs in a single call.

Key Features

• Dash 208 standard sizing: 0.625 inches ID, 0.875 inches OD, 0.125 inches thick
• Silicone material rated from -80 degrees F to 450 degrees F service temperature
• Shore A hardness of 70 for reliable compression sealing under mechanical load
• Good weather and ozone resistance for outdoor or exposed equipment installations
• Compatible with oils, chemicals, and solvents in appropriate concentration ranges
• Sold in a 50-piece pack for multi-point repairs or service kit stocking

Compatibility

Designed as a standard Dash 208 replacement O-ring for use in fittings, valves, and mechanical assemblies requiring a 0.625 inches ID silicone seal with wide temperature range capability.

Installation Notes

This O-ring is installed by licensed HVAC technicians, plumbers, and qualified mechanical maintenance personnel. Always depressurize and de-energize the system before removing any fitting or valve containing a sealing O-ring. Inspect the mating groove for burrs or scoring before installing the new ring, and ensure the groove dimensions match Dash 208 specifications. Do not twist or roll the O-ring into position in a way that creates a spiral set; seat it evenly in the groove before assembly.